Marine ropes, often referred to as lines in nautical terms, are a fundamental component of any boat or marine vessel. They are specially designed cords, cables, or strands twisted or braided together to provide strength, durability, and flexibility for a wide range of maritime applications. Unlike general-purpose ropes, marine ropes are engineered to withstand the unique and harsh conditions of the marine environment, including exposure to saltwater, UV radiation, abrasion, and heavy loads.
The primary purpose of marine ropes is to connect, secure, and control various parts of a boat. From holding a vessel in place at a dock to hoisting sails, these ropes are essential for safety, navigation, and operation. Their design is a result of centuries of nautical innovation, with modern materials and construction techniques providing unprecedented strength and reliability.
Selecting the correct rope for a specific task is one of the most critical decisions a boater can make. Using the wrong type of rope can lead to equipment failure, potential damage to the vessel, or, in the worst-case scenario, serious accidents. A rope’s properties, such as its material, construction, strength, and stretch, directly impact its performance and suitability for different applications. For example, a rope used for docking needs to be elastic to absorb shock from waves, while a rope for hoisting a sail requires minimal stretch to maintain tension and control. Understanding the differences between types of ropes is key to ensuring a safe and successful experience on the water.

Marine ropes are categorized in two primary ways: by the material they are made from and by their construction. Each type offers a unique combination of properties that make it suitable for specific tasks.
By Material
The material is the most significant factor determining a rope's characteristics, including its strength, elasticity, UV resistance, and durability.
Nylon Ropes:
Pros: Nylon is one of the most popular materials for marine ropes due to its excellent combination of high strength and elasticity. This stretchiness allows it to absorb shock loads, making it ideal for applications where sudden forces are common. It's a strong, durable, and relatively affordable option.
Cons: A notable drawback of nylon is its susceptibility to UV degradation over time, which can weaken the fibers if the rope is not properly cared for. Additionally, nylon loses a significant amount of its strength (up to 15-20%) when wet.
Common uses: Due to its shock-absorbing properties, nylon is the go-to choice for dock lines and anchor lines, where it can handle the stress from wind and waves without breaking.
Polyester Ropes:
Pros: Polyester ropes are highly valued for their outstanding resistance to UV degradation and abrasion. They have very low stretch, which means they maintain their length under load. This property makes them highly efficient for applications that require precise control. They also retain their strength when wet, unlike nylon.
Cons: The main disadvantage is their lack of elasticity compared to nylon, making them less suitable for shock-absorbing applications like anchoring.
Common uses: Their low stretch and durability make polyester ropes the preferred material for running rigging, sheets, and other control lines on sailboats.
Polypropylene Ropes:
Pros: The most distinguishing feature of polypropylene is its extremely light weight and the fact that it floats. This makes it easy to handle and retrieve from the water. It is also an inexpensive option, often used for non-critical tasks.
Cons: Polypropylene has relatively low strength and poor resistance to UV degradation and abrasion. It becomes brittle in cold temperatures.
Common uses: Polypropylene is widely used for utility ropes, tow lines for water sports, and pool ropes where its floating characteristic is a major advantage.
HMPE (High Modulus Polyethylene) Ropes (e.g., Dyneema, Spectra):
Pros: HMPE is a high-performance synthetic fiber known for being incredibly strong and lightweight. Ropes made from HMPE fibers, such as Dyneema and Spectra, are often stronger than steel cable of the same diameter. They exhibit very low stretch, are highly resistant to abrasion, and are not affected by water.
Cons: The primary drawback of HMPE ropes is their high cost. They also have a low melting point and are susceptible to damage from excessive heat, such as friction on a winch.
Common uses: Their exceptional strength-to-weight ratio and low stretch make them perfect for high-performance applications like halyards, control lines, and standing rigging on racing sailboats where weight and stretch are critical.
Aramid Ropes (e.g., Kevlar):
Pros: Aramid fibers are known for their extremely high tensile strength and excellent heat resistance. Ropes made from materials like Kevlar are exceptionally strong for their weight.
Cons: Aramid ropes are very expensive and have poor UV resistance, making them impractical for prolonged outdoor use unless protected. They also have a tendency to "kink" and can be difficult to splice.
Common uses: Due to their specialized properties, aramid ropes are typically reserved for highly demanding applications, such as industrial lifting slings and certain high-stress running rigging components where their strength-to-weight ratio is essential.
|
Material |
Pros |
Cons |
Common Uses |
|
Nylon |
High strength, excellent elasticity, absorbs shock loads, strong, durable, affordable. |
Susceptible to UV degradation, loses 15-20% strength when wet. |
Dock lines, anchor lines, shock-absorbing applications. |
|
Polyester |
Outstanding UV resistance, abrasion resistance, low stretch, retains strength when wet. |
Lacks elasticity, not suitable for shock absorption. |
Running rigging, sheets, control lines on sailboats. |
|
Polypropylene |
Lightweight, floats, inexpensive, easy to handle and retrieve from water. |
Low strength, poor UV resistance, brittle in cold temperatures. |
Utility ropes, tow lines, pool ropes, non-critical applications. |
|
HMPE (Dyneema, Spectra) |
Extremely strong, lightweight, low stretch, highly resistant to abrasion, unaffected by water. |
High cost, low melting point, susceptible to heat damage from friction. |
High-performance halyards, control lines, standing rigging on racing sailboats. |
|
Aramid (Kevlar) |
Extremely high tensile strength, excellent heat resistance, strong for its weight. |
Very expensive, poor UV resistance, prone to kinking, difficult to splice. |
Industrial lifting slings, high-stress running rigging components, specialized applications. |
By Construction
The way a rope’s fibers are assembled into a finished product significantly affects its handling, flexibility, and strength.
3-Strand Rope:
Description: This is the most traditional type of rope construction. It is made by twisting three strands of fibers together in a spiral pattern. This method results in a rope with good elasticity and a classic feel. It is also the easiest type of rope to splice.
Uses: 3-strand rope is a general-purpose workhorse, commonly used for dock lines and anchor lines, especially in nylon, because of its stretch and ease of use.
Braided Rope:
Description: Braided ropes are constructed by braiding fibers together into a hollow or solid core. This construction method creates a rope that is stronger and has less stretch than 3-strand rope of the same material. It is more flexible and less prone to kinking.
Uses: Braided ropes are frequently used for running rigging and sheets on cruising and racing yachts, where lower stretch is desirable for sail shape control.
Double-Braided Rope:
Description: This type of rope features a braided core (the "kern") and a separate braided cover (the "mantle") woven around it. The core provides the primary strength and low stretch, while the cover protects the core from abrasion and UV damage. This construction offers an excellent balance of strength, durability, and handling.
Uses: Double-braided ropes are a staple for high-load applications like halyards, mooring lines, and sheets on larger vessels.
Kernmantle Rope:
Description: The term "kernmantle" comes from the German words "Kern" (core) and "Mantle" (sheath). This construction consists of a core of twisted parallel fibers that provide strength and a braided sheath that protects the core from wear and tear. This is a common construction for safety and climbing ropes.
Uses: While not as common for general marine applications, kernmantle ropes are essential for climbing ropes, safety lines, and certain rescue operations where high strength and a protected core are critical.
Understanding the key properties of marine ropes is essential for making an informed choice for any application. These characteristics dictate a rope's performance, durability, and suitability for specific tasks in the demanding marine environment.
Strength:
Breaking Strength: This is the force at which a new, dry, undamaged rope is expected to break. It is a theoretical value determined under controlled laboratory conditions. Ropes are rated by their minimum breaking strength, but it's crucial to remember that this is an absolute maximum and should never be the target working load.
Working Load Limit (WLL): The WLL is the maximum load that can be safely applied to a rope in normal operating conditions. It is typically a fraction of the breaking strength, often calculated with a safety factor of 5:1. For example, a rope with a breaking strength of 5,000 pounds would have a WLL of 1,000 pounds. This safety margin accounts for factors like knots, splices, age, wear, and environmental conditions that can significantly reduce a rope's strength. Using a rope above its WLL can cause premature failure and is extremely dangerous.
Stretch (Elongation):
Elongation refers to how much a rope stretches under load before it breaks. It is a critical property that varies significantly between different materials.
High Stretch: Ropes with high elongation, like nylon, are excellent at absorbing shock loads. This makes them ideal for applications such as dock lines and anchor rodes, where they can absorb the force of waves and wind without putting excessive stress on cleats, winches, or the boat's hull. The "give" in the rope acts as a cushion.
Low Stretch: Ropes with low elongation, such as polyester and HMPE (Dyneema), are ideal for applications where maintaining a precise length is crucial. This is particularly important for running rigging on sailboats, where a sheet or halyard must hold a sail in a specific shape without stretching under wind pressure. Low-stretch ropes provide better control and responsiveness.
UV Resistance:
The sun's ultraviolet (UV) rays can cause significant degradation to the synthetic fibers in marine ropes. Over time, UV exposure breaks down the polymer chains, leading to a loss of strength and a breakdown of the rope's outer sheath.
Excellent UV Resistance: Materials like polyester have superior UV resistance and are a great choice for ropes that will be in constant sunlight.
Poor UV Resistance: Ropes made from polypropylene and aramid fibers (Kevlar) are particularly susceptible to UV degradation and will weaken much faster if not protected. Nylon's UV resistance is moderate, but it will degrade over time with prolonged exposure.
Abrasion Resistance:
Abrasion is the physical wear and tear on a rope caused by friction against surfaces like cleats, chocks, winches, and other hardware.
Good Abrasion Resistance: Polyester, HMPE, and double-braided ropes generally offer excellent resistance to abrasion. The outer jacket on double-braid ropes is specifically designed to protect the load-bearing core from wear.
Poor Abrasion Resistance: Softer materials and traditional 3-strand constructions can be more susceptible to fraying and abrasion damage. A single point of high abrasion can significantly reduce a rope's strength, sometimes by over 50%. Regular inspection for chafe and using chafe guards or protective sleeves are vital to prolonging a rope's life.
Water Resistance:
How a rope behaves when wet is a crucial factor. Water can affect a rope's strength, flexibility, and weight.
Nylon: As mentioned, nylon loses strength when wet and can also become stiffer.
Polyester, Polypropylene, and HMPE: These materials are generally hydrophobic and do not absorb water. This means they retain their strength and remain flexible when wet. This is a significant advantage for ropes used in continuous marine applications.
Chemical Resistance:
Marine ropes can come into contact with various chemicals, including fuel, oil, acids from battery spills, and cleaning agents. A rope's resistance to these substances is important for its longevity.
Good Chemical Resistance: Polyester and HMPE are generally very resistant to common marine chemicals.
Poor Chemical Resistance: Polypropylene and nylon can be degraded by certain chemicals, such as acids. Always check the manufacturer's specifications for chemical compatibility.
By carefully considering these properties in relation to your specific needs—whether it's for the shock absorption of a dock line, the low-stretch performance of a halyard, or the sheer strength of an anchor rode—you can select the right marine rope to ensure safety and optimal performance on the water.
Marine ropes are versatile tools with a wide range of applications that go beyond just mooring a boat. Their use is categorized by the specific function they perform, with each application demanding certain characteristics from the rope.
This is the most common and varied application for marine ropes, with different tasks requiring distinct types of lines.
Dock Lines: These are used to secure a boat to a dock or pier. The most critical property for a dock line is elasticity, which allows it to absorb the shock of waves and wind. Nylon is the traditional and most popular choice for dock lines because of its high stretch and shock-absorbing capabilities. Its elasticity protects the boat's cleats and hull from stress and prevents snapping in rough conditions. Dock lines are typically constructed in a 3-strand or double-braided form for durability and ease of handling.
Anchor Lines (Anchor Rodes): An anchor line connects the boat's anchor to the vessel. Its primary function is to hold the boat in place, which requires both high tensile strength and shock-absorbing ability to handle the pulling forces of tides, currents, and wind. Similar to dock lines, nylon is the preferred material for anchor lines due to its stretch, which helps it absorb sudden loads and prevent the anchor from being pulled free. Anchor lines are often a combination of rope and chain; the chain adds weight to the rode, helping to set the anchor firmly on the seabed and protecting the rope from chafe.
Halyards: Halyards are lines used to raise and lower sails on a sailboat. For racing sailboats, halyards must have extremely low stretch to maintain the sail's precise shape and maximize performance. HMPE (Dyneema) ropes are the top choice for this application because their near-zero stretch provides a competitive advantage. For cruising sailors, polyester ropes are a more affordable and durable option for halyards. Double-braided construction is common for halyards, as it provides a good balance of strength, durability, and a comfortable grip for handling.
Sheets: Sheets are the lines used to control the trim of sails (e.g., the position and angle of the sails relative to the wind). Like halyards, sheets require low stretch to ensure responsive control over the sail. Polyester and HMPE are the materials of choice for sheets. Polyester offers a good balance of low stretch and affordability for cruising, while HMPE is used on high-performance boats where every fraction of an inch of stretch matters. Braided and double-braided constructions are preferred for sheets because they are less prone to kinking and are easier to handle on winches.
Mooring Lines: Mooring lines are used to secure a boat to a permanent mooring buoy. These lines are subjected to continuous loads and must be highly resistant to abrasion and UV degradation. Nylon is often used due to its shock-absorbing properties, but double-braided polyester is also a popular choice for its superior UV and abrasion resistance, especially in long-term mooring situations.
Ropes play a critical role in commercial and recreational fishing operations.
Netting: Ropes are used to construct and support fishing nets. The material needs to be strong and resistant to abrasion from fish and debris. Polypropylene is often used in some types of nets due to its floating properties and low cost, making the nets easy to set and retrieve.
Towing: Tying a fishing boat or commercial vessel requires strong, durable lines. Nylon and polyester are common for towing applications, selected based on the size of the vessels and the required stretch.
Ropes are fundamental tools in various industrial settings, particularly where strength, durability, and specialized properties are required.
Towing: Industrial towing of barges, ships, and other large objects requires ropes with immense strength. High-performance synthetic ropes made from HMPE have largely replaced traditional steel wire because they are significantly lighter, safer to handle, and offer comparable or greater strength.
Lifting: Ropes are used as slings and lifting lines in cranes and rigging operations. The choice of material depends on the load and environmental conditions. HMPE and Aramid (Kevlar) ropes are sometimes used for specialized lifting due to their extreme strength-to-weight ratio.
Securing: Ropes are used to secure cargo on ships and trucks, in construction, and in other applications where items need to be lashed down. The choice of rope depends on the required strength and resistance to weather and abrasion.
The correct application of marine ropes is not just a matter of convenience—it is a matter of safety and efficiency. Using the right rope for each task ensures that the vessel and its equipment are protected, and that the crew can operate safely and with confidence.
Selecting the right marine rope is a critical decision that directly impacts your safety, the performance of your vessel, and your budget. It's a process that requires careful consideration of several key factors to ensure you make the best choice for your specific needs.
Application: This is the single most important factor. The purpose of the rope dictates its required properties.
For dock lines and anchor lines, you need a rope with high stretch to absorb shock. Nylon is the ideal choice here.
For running rigging (halyards, sheets), you need a rope with low stretch to maintain sail shape and control. Polyester and HMPE (Dyneema) are the best options.
For a utility line or a rope that needs to float, such as a water ski tow rope, polypropylene is the answer.
Boat Size and Type: The size and weight of your boat directly determine the required rope strength and diameter.
A small dinghy will require much less strength and a smaller diameter rope than a large cruising yacht.
A cruising sailboat will have different needs than a high-performance racing yacht. Racers prioritize weight savings and minimal stretch, often opting for high-end HMPE ropes, while cruisers might choose more durable and cost-effective polyester or nylon lines.
Weather Conditions: The environment in which you operate your boat influences your rope choice.
If you frequently boat in rough waters with heavy winds and waves, you'll need ropes with higher breaking strength and superior shock absorption, such as double-braided nylon for mooring.
If your ropes are constantly exposed to intense sunlight, choosing a material with excellent UV resistance, like polyester, will extend their lifespan and prevent premature failure.
Budget: Marine ropes range widely in price.
Polypropylene and basic 3-strand nylon are the most economical choices.
Polyester offers a good balance of performance and price.
High-performance ropes made from HMPE (Dyneema) and Aramid are significantly more expensive but provide a level of strength and performance unmatched by other materials. It’s important to balance the need for high performance with what you can reasonably afford, keeping in mind that the safety and durability of your ropes are a valuable investment.
Diameter: The diameter of a rope is crucial for two reasons: strength and handling.
Strength: A larger diameter rope is inherently stronger than a smaller one of the same material. You should always consult a rope manufacturer's sizing chart to match the appropriate diameter to your boat's length and displacement. The general rule of thumb for dock and anchor lines is a 1/8-inch diameter for every 9 feet of boat length, but this is a rough guide.
Handling: A rope that is too thick will be difficult to handle, tie knots in, and fit onto cleats and winches. A rope that is too thin can be hard on the hands and may not be strong enough for the load. Choosing a diameter that feels comfortable in your hands and fits your boat’s hardware is key.
Length: The length of your ropes is just as important as their diameter.
Dock lines should be long enough to account for tides and changing water levels. A good rule of thumb is a length equal to half the boat's length. For spring lines, which prevent forward and backward movement, you may need lines that are as long as the boat itself.
Anchor lines should be significantly longer than the water's depth to achieve a proper scope (the ratio of rope length to water depth). A minimum scope of 5:1 is recommended, meaning you need 50 feet of rope for every 10 feet of depth. In a harbor, you may need a much longer anchor line to avoid collisions with other boats.
Running rigging lengths depend on the specific sailboat rig. You should always measure your boat's rigging to determine the appropriate length for halyards and sheets.
It’s crucial to ensure that your ropes are compatible with your boat's hardware.
Cleats and Chocks: A rope that is too large in diameter may not fit properly through chocks, leading to chafe.
Winches: The diameter of a rope must be compatible with your boat's winches. Using a rope that is too thin can lead to slipping, while one that is too thick will not grip properly.
Fittings: Pulleys, blocks, and other fittings are rated for a specific rope diameter. Using an oversized rope can cause damage to the fitting and the rope itself, and an undersized rope can slip.
By methodically considering these factors, you can make an educated choice that provides the best combination of safety, performance, and value for your marine activities.
Proper maintenance and care are essential for extending the life of your marine ropes and, more importantly, for ensuring their reliability and your safety on the water. Even the highest quality ropes can fail prematurely if they are not looked after properly.
Cleaning your ropes regularly is a simple but effective way to maintain their strength and longevity.
Washing with Fresh Water: The most common and important cleaning task is rinsing your ropes with fresh water after each use in a saltwater environment. Salt crystals left on the fibers can attract moisture, hold grit, and accelerate internal and external abrasion. A simple freshwater hose-down is often all that's needed.
Avoiding Harsh Chemicals: When more thorough cleaning is necessary, use a mild, pH-neutral soap specifically designed for marine gear or a gentle fabric cleaner. Avoid using bleach, harsh detergents, or any cleaners with strong chemicals. These can weaken the rope fibers, especially in materials like nylon and polyester, compromising their integrity.
Machine Washing: For a deeper clean, some ropes can be washed in a washing machine. Place them in a mesh laundry bag or pillowcase to prevent them from tangling or damaging the machine's agitator. Use a gentle cycle with cold water and a mild detergent.
Drying: Always allow ropes to air dry completely before storing them. Do not use a machine dryer, as the high heat can damage and weaken the synthetic fibers. Lay the ropes out in a clean, shaded area, as direct sunlight can cause UV degradation.
Proper storage is crucial for protecting ropes from environmental damage when not in use.
Storing in a Dry, Cool Place: Ropes should be stored in a location that is cool, dry, and well-ventilated. Damp or poorly ventilated areas can lead to mildew growth, which can cause unpleasant odors and weaken natural fibers, although it is less of a concern for synthetics.
Protecting from UV Exposure: Sunlight is one of the most damaging elements for marine ropes. Always store ropes out of direct sunlight. If a rope locker or storage bag is not an option, covering them with a tarp or canvas will provide some protection. Ropes like polypropylene and nylon are particularly vulnerable to UV degradation and should be shielded from the sun whenever possible.
Properly Coiling: Coil or flake your ropes neatly before storage. This prevents tangles, kinks, and knots from forming. Kinks and knots can create weak points and make the rope difficult to deploy in an emergency. The proper coiling technique also helps to identify any damaged sections during the process.
Regular inspection is the most important part of rope maintenance. You should check your ropes before and after each use, especially before embarking on a long trip.
Checking for Wear and Tear: Visually inspect the entire length of the rope for signs of damage.
Fuzzy Spots: These indicate that the outer fibers are beginning to break down due to abrasion. If you see fuzziness on a double-braided or braided rope, it means the protective sheath is wearing thin.
Discoloration: Faded colors or a chalky appearance, especially on nylon and polypropylene ropes, are signs of significant UV damage.
Lumps or Bumps: On double-braided ropes, feel for any lumps or bumps. These can indicate damage to the inner core, which is the primary load-bearing part of the rope.
Glazed or Hardened Areas: These are often a sign of heat damage, possibly from friction on a winch or a cleat. Heat damage can severely compromise a rope's strength.
Broken Strands: For 3-strand ropes, look for broken or un-twisted strands. This is a clear sign that the rope is nearing the end of its life.
Replacing Damaged Ropes: If you find any significant damage, it is critical to replace the rope. A rope's breaking strength is only as good as its weakest point. Do not try to repair severely damaged ropes for critical applications like docking or anchoring. They are no longer reliable and pose a serious safety risk.
By incorporating these simple maintenance and care practices into your boating routine, you can ensure that your marine ropes remain strong, reliable, and safe for all your adventures on the water.
Safety is paramount on the water, and the proper use of marine ropes is a critical part of a safe boating experience. By following these safety tips, you can minimize risks and ensure that your ropes perform reliably when you need them most.
This is the most fundamental safety rule. A rope’s material, construction, and size are chosen for a specific purpose. Using a rope in an application for which it was not designed can lead to catastrophic failure.
Never substitute: Do not use a lightweight, low-strength polypropylene utility rope for a heavy-duty task like an anchor line or a tow rope. Polypropylene’s low strength and poor UV resistance make it completely unsuitable for such high-stress applications.
Match stretch to function: Use high-stretch ropes like nylon for shock-absorbing applications (dock lines, anchor lines) and low-stretch ropes like polyester or HMPE for static-load applications (halyards, sheets). Using a low-stretch rope for docking can put immense, damaging stress on cleats and mooring points, potentially causing them to break.
Size matters: Always use a rope with the appropriate diameter and working load limit (WLL) for your boat and the expected load. Using a rope that is too thin means you are operating with a dangerously low safety factor. A rope that is too thick can be difficult to handle and may not fit correctly on your hardware, leading to slippage.
As highlighted in the maintenance section, regular inspection is a non-negotiable safety practice.
Before and after every trip: Make a habit of visually and physically inspecting all your critical lines, including dock lines, anchor rodes, and running rigging. Look for any signs of chafe, discoloration, broken fibers, or hard, glazed areas from heat.
Feel the rope: Run the rope through your hands to feel for any internal damage or lumps, especially in double-braided ropes, which can hide a damaged core.
Check the ends: The ends of the ropes, particularly where they are tied to cleats or run through chocks, are the most common points of wear. Check for chafe and consider using chafe guards or protective coverings where the rope rubs against a hard surface.
When in doubt, cut it out: If a rope shows significant signs of wear or damage, do not rely on it for any critical application. It is far safer and more cost-effective to replace a questionable rope than to risk a major accident. A line that fails in a storm or during a tight docking maneuver can have severe consequences.
Ropes have a maximum safe working load, and exceeding it is a direct path to failure.
Know your WLL: Always be aware of the working load limit for your ropes. It is typically a conservative estimate, but it accounts for real-world factors that weaken a rope.
Account for knots: A knot can reduce a rope’s strength by as much as 50%. A simple knot like a figure-eight or bowline significantly weakens the line, so you should factor this into your WLL calculations.
Avoid sudden shock loads: While some ropes like nylon are designed to absorb shock, all ropes have a limit. Avoid actions that put sudden, extreme stress on the line. For example, when anchoring, let the anchor settle before applying a strong pull. When towing, increase speed slowly to avoid a sudden jerk on the towline.
A poorly tied knot is a weak point in any line. Learning and using the correct knots for each application is essential.
Choose the right knot:
The cleat hitch is the standard for securing a line to a cleat.
The bowline is a reliable knot for creating a secure, non-slip loop at the end of a line.
The anchor bend is the preferred knot for tying an anchor line to an anchor.
Practice makes perfect: Practice tying your knots so you can do them correctly and efficiently, even in low light or under pressure. A sloppy knot can slip or fail.
Learn to splice: Splicing a rope (especially 3-strand or double-braid) is often stronger than tying a knot, as it doesn't create the severe bends that weaken the rope. Learning how to splice can significantly improve the safety and longevity of your lines.
By adhering to these safety guidelines, you can ensure that your marine ropes are not just tools but reliable lifelines that will serve you well for years to come.
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