Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Q: Context: A machine is any device that makes work easier by changing a force. When you use a machine, you apply force to the machine. This force is called the input force. The machine, in turn, applies force to an object. This force is called the output force. Recall that work equals force multiplied by distance: Work = Force Distance The force you apply to a machine is applied over a given distance, called the input distance. The force applied by the machine to the object is also applied over a distance, called the output distance. The output distance may or may not be the same as the input distance. Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied. Contrary to popular belief, machines do not increase the amount of work that is done. They just change how the work is done. So if a machine increases the force applied, it must apply the force over a shorter distance. Similarly, if a machine increases the distance over which the force is applied, it must apply less force. Examples of machines that increase force are doorknobs and nutcrackers. Figure 16.8 explains how these machines work. In each case, the force applied by the user is less than the force applied by the machine, but the machine applies the force over a shorter distance. Examples of machines that increase the distance over which force is applied are paddles and hammers. Figure 16.9 explains how these machines work. In each case, the machine increases the distance over which the force is applied, but it reduces the strength of the applied force. Some machines change the direction of the force applied by the user. They may or may not also change the strength of the force or the distance over which it is applied. Two examples of machines that work in this way are claw hammers and the rope systems (pulleys) that raise or lower flags on flagpoles. Figure 16.10 explains how these machines work. In each case, the direction of the force applied by the user is reversed by the machine. How does this make it easier to do the job? An exoskeleton suit may seem like science fiction, turning ordinary humans into super heroes. But wearable robots are moving forward into reality. And for paraplegics, the ability to stand and walk that these machines provide is a super power. QUEST meets Austin Whitney and Tamara Mena, two "Exoskeleton Test Pilots" who are now putting this new technology through its paces. For more information on exoskeleton suits, see [Link] MEDIA Click image to the left or use the URL below. URL: You read above that machines do not increase the work done on an object. In other words, you cant get more work out of a machine than you put into it. In fact, machines always do less work on the object than the user does on the machine. Thats because all machines must use some of the work put into them to overcome friction. How much work? It depends on the efficiency of the machine. Efficiency is the percent of input work that becomes output work. It is a measure of how well a machine reduces friction. Consider the ramp in Figure 16.11. Its easier to push the heavy piece of furniture up the ramp to the truck than to lift it straight up off the ground. However, pushing the furniture over the surface of the ramp creates a lot of friction. Some of the force applied to moving the furniture must be used to overcome the friction. It would be more efficient to use a dolly on wheels to roll the furniture up the ramp. Thats because rolling friction is much less than sliding friction. As a result, the efficiency of the ramp would be greater with a dolly. Efficiency can be calculated with the equation: Efficiency = Output work 100% Input work Consider a machine that puts out 6000 joules of work. To produce that much work from the machine requires the user to put in 8000 joules of work. To find the efficiency of the machine, 
 Question: force applied by a machine

A: output force
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Q: Context: Singapore's selection as the host of the 28th Southeast Asian Games of 2015 was announced in 2011 during the 26th Southeast Asian Games, held in Indonesian cities Palembang and Jakarta. Singapore had previously been nominated to host the event in 2007 and 2013, but turned down both opportunities citing costs associated with the construction of the new Singapore Sports Hub. 
 Question: What happened first: 26th Southeast Asian Games or 28th Southeast Asian Games?

A: 26th southeast asian games
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Q: Context: The War of the Spanish Succession was a European conflict of the early 18th century, triggered by the death of the childless Charles II of Spain in November 1700. His closest heirs were members of the Austrian Habsburg and French Bourbon families; acquisition of an undivided Spanish Empire or Monarchy by either threatened the European balance of power. Charles left his throne to Louis XIV's grandson Philip who was proclaimed King of Spain on 16 November 1700. Disputes over the separation of the Spanish and French crowns, division of territories and commercial rights led to war in 1701 between the Bourbons of France and Spain and the Grand Alliance, whose candidate was Archduke Charles, younger son of Habsburg Emperor Leopold. By 1710, fighting was deadlocked; Allied victories in Italy and the Low Countries had driven the French back to their borders but they could not achieve a decisive breakthrough while Philip was secure in Spain. When Archduke Charles succeeded his brother Joseph I as Emperor in 1711, Britain effectively withdrew, forcing its Allies to make peace and leading to the 1713 Treaty of Utrecht, followed in 1714 with Rastatt and Baden. Philip was confirmed as King of Spain and renounced the French throne; Spain retained the bulk of its pre-war territories outside Europe with their European territories divided between Austria, Britain and Savoy. Longer term impacts included Britain's emergence as the leading maritime and commercial power, the beginning of the decline of the Dutch Republic, the creation of a centralised Spanish state and the acceleration of the break-up of the Holy Roman Empire. 
 Question: How was Charles related to Joseph I?

A:
brother
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