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.

[EX Q]: Context: The actions of benzodiazepines are due to the potentiation of the neural inhibition that is mediated by gamma-aminobutyric acid (GABA). Practically all effects of the benzodiazepines result from their actions on the ionotropic GABA(A) receptors in the central nervous system. Benzodiazepines do not activate GABA(A) receptors directly but they require GABA. The main effects of benzodiazepines are sedation, hypnosis, decreased anxiety, anterograde amnesia, centrally mediated muscle relaxation and anti-convulsant activity. In addition to their action on the central nervous system, benzodiazepines have a dose-dependent ventilatory depressant effect and they also cause a modest reduction in arterial blood pressure and an increase in heart rate as a result of a decrease of systemic vascular resistance. The four benzodiazepines, widely used in clinical anaesthesia, are the agonists midazolam, diazepam and lorazepam and the antagonist flumazenil. Midazolam, diazepam and flumazenil are metabolized by cytochrome P450 (CYP) enzymes and by glucuronide conjugation whereas lorazepam directly undergoes glucuronide conjugation. CYP3A4 is important in the biotransformation of both midazolam and diazepam. CYP2C19 is important in the biotransformation of diazepam. Liver and renal dysfunction have only a minor effect on the pharmacokinetics of lorazepam but they slow down the elimination of the other benzodiazepines used in clinical anaesthesia. The duration of action of all benzodiazepines is strongly dependent on the duration of their administration. Based on clinical studies and computer simulations, midazolam has the shortest recovery profile followed by lorazepam and diazepam. Being metabolized by CYP enzymes, midazolam and diazepam have many clinically significant interactions with inhibitors and inducers of CYP3A4 and 2C19. In addition to pharmacokinetic interactions, benzodiazepines have synergistic interactions with other hypnotics and opioids. Midazolam, diazepam and lorazepam are widely used for sedation and to some extent also for induction and maintenance of anaesthesia. Flumazenil is very useful in reversing benzodiazepine-induced sedation as well as to diagnose or treat benzodiazepine overdose. 
 Question: Which drug should be used as an antidote in benzodiazepine overdose?
[EX A]: flumazenil

[EX 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
[EX A]: output force

[EX Q]: Context: At the Kibbutz Stein in Israel in 1956, school teacher Rachel (Clarice van Houten) is reunited with Ronnie (Halina Reijn), a friend from The Hague during World War II. After Ronnie leaves, Rachel reflects on her adventures during the final days of the war.In 1944, Rachel hides from the Nazis in a farm in the Dutch countryside. In exchange for hiding her, they expect her to learn Bible verses. One day, a crippled Allied bomber drops its payload on the farmhouse, killing everyone except Rachel. Rob (Michiel Heisman), a young man from a neighboring farm, hides her in the family's greenhouse. That night, Van Gein (Peter Blok), a police officer, arrives to tell them that the Nazis know that Rachel is in the area and will hunt her down. He agrees to help Rachel and Rob escape to the Allied controlled southern part of Holland. Rachel visits her father's lawyer, Smaal (Dolf de Vries). He gives her enough money and jewels to live on for a year but warns her not to trust people so easily. Van Gein leads Rachel and Rob to a dock where other Jews wait to leave. Rachel is reunited with her parents and brother, who is recovering from an emergency appendectomy. Van Gein does not accompany the Jews on the boat trip. That evening, the boat is ambushed by a Nazi patrol boat. The Nazis immediately open fire; only Rachel survives the massacre. Before drifting down the river, she sees the Nazis loot the corpses.Rachel is found by Resistance fighters who smuggle her into The Hague by disguising her as a typhoid victim and placing her in a coffin that if properly "sealed" has sizable air holes. She is taken to a soup kitchen run by another member of the Resistance, Gerben Kuipers (Derek de Lint) and given the new name of Ellis de Vries. Eventually she is made a part of the Resistance's plans to smuggle in British guns and rations. The smugglers are led by Hans Akkermans (Thom Hoffman), an expert marksman. He and Ellis are to pose as husband and wife so the Nazis will not search their luggage on the train; the luggage is actually full of weaponry. But when the Nazi soldiers on the train clearly do intend to search all baggage, a new plan is needed. Ellis takes the bags and enters a private compartment occupied by SD Colonel Muntze (Sebastian Koch). The Nazis don't search Muntze's compartment. Ellis and Muntze are clearly attracted to each other and she accepts an offer to visit him at his office. Hans is clearly jealous.A truck carrying the British guns crashes in front of the soup kitchen. Kuiper's son, Tim (Ronald Armbrust) was driving and is arrested by the Gestapo. While the others go into hiding, Ellis arranges a meeting with Muntze hoping that she can persuade him to release Tim. Knowing he is an avid stamp collector, she takes some rare Dutch stamps to him. He invites her to a Nazi party. There she sees SS commandant Gunter Franken (Waldemar Kobus) and recognizes him as the Nazi who led the ambush against the refugee boat. Although she is sickened at his sight, she manages to sing at the party later. She and Muntze return to his suite to make love. He intuits that she is Jewish from her dyed blond hair but has fallen in love with her. She accepts a job in his office and begins work the following day. There she meets Ronnie, who is Franken's secretary/sex partner. Franken gives them a report indicating that Tim has confessed everything and is to be executed, however, Muntze refuses to sign the execution order.Ellis sees Smaal at Nazi headquarters and learns that he and Muntze have negotiated a cease fire -- if the Resistance ceases its attacks against the Nazis, the Nazis will cease its violent reprisals against Dutch civilians. However, when a hidden microphone placed by Ellis in Franken's office reveals that Franken and Van Gein have been working together to kill and rob Jews trying to escape into Allied territory, a controversy amongst the Resistance fighters ensues. Van Gein is heard 
 Question: Who is Rachel Stein hiding from?
[EX A]:
nazis