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.

Context: Humans did not reach space until the second half of the 20th century. They needed somehow to break past Earths gravity. A rocket moves rapidly in one direction. The device is propelled by particles flying out of it at high speed in the other direction. There are records of the Chinese using rockets in war against the Mongols as early as the 13th century. The Mongols then used rockets to attack Eastern Europe. Early rockets were also used to launch fireworks. Rockets were used for centuries before anyone could explain how they worked. The theory came about in 1687. Isaac Newton (16431727) described three basic laws of motion, now referred to as Newtons Laws of Motion: 1. An object in motion will remain in motion unless acted upon by a force. 2. Force equals mass multiplied by acceleration. 3. To every action, there is an equal and opposite reaction. Which of these three best explains how a rocket works? Newtons third law of motion. When a rockets propulsion pushes in one direction, the rocket moves in the opposite direction, as seen in the Figure 23.12. For a long time, many people believed that a rocket wouldnt work in space. There would be nothing for the rocket to push against. But they do work! Fuel is ignited in a chamber. The gases in the chamber explode. The explosion creates pressure that forces the gases out of one side of the rocket. The rocket moves in the opposite direction, as shown in Figure 23.13. The force pushing the rocket is called thrust. For centuries, rockets were powered by gunpowder or other solid fuels. These rockets could travel only short distances. Around the turn of the 20th century, several breakthroughs took place. These breakthroughs led to rockets that could travel beyond Earth. Liquid fuel gave rockets enough power to escape Earths gravity (Figure 23.14). By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher. Rockets were used during World War II. The V2 was the first human-made object to travel high enough to be considered in space (Figure 23.15). Its altitude was 176 km (109 miles) above Earths surface. Wernher von Braun was a German rocket scientist. After he fled Germany in WWII, he helped the United States develop missile weapons. After the war, von Braun worked for NASA. He designed the Saturn V rocket (Figure One of the first uses of rockets in space was to launch satellites. A satellite is an object that orbits a larger object. An orbit is a circular or elliptical path around an object. Natural objects in orbit are called natural satellites. The Moon is a natural satellite. Human-made objects in orbit are called artificial satellites. There are more and more artificial satellites orbiting Earth all the time. They all get into space using some sort of rocket. Why do satellites stay in orbit? Why dont they crash into Earth due to the planets gravity? Newtons law of universal gravitation describes what happens. Every object in the universe is attracted to every other object. Gravity makes an apple fall to the ground. Gravity also keeps you from floating away into the sky. Gravity holds the Moon in orbit around Earth. It keeps Earth in orbit around the Sun. Newton used an example to explain how gravity makes orbiting possible. Imagine a cannonball launched from a high mountain, as shown in Figure 23.17. If the cannonball is launched at a slow speed, it will fall back to Earth. This is shown as paths (A) and (B). Something different happens if the cannonball is launched at a fast speed. The Earth below curves away at the same rate that the cannonball falls. The cannonball then goes into a circular orbit, as in path (C). If the cannonball is launched even faster, it could go into an elliptical orbit (D). It might even leave Earths gravity and go into space (E). Unfortunately, Newtons idea would not work in real life. A cannonball launched at a fast speed from Mt. Everest would not go into orbit. 
 Question: The first rocket to travel into space was used during
world war ii.

Context: Leonard (Phoenix) is walking along a bridge over a creek in Brooklyn, when suddenly he jumps into the water in an attempted suicide. He changes his mind and quickly walks home to his parents' apartment. His mother, seeing him dripping wet, tells her husband their son has tried it again and it becomes evident that Leonard has tried to kill himself before. His parents tell him that a potential business partner and his family are invited for dinner that night and ask him to be present. When they arrive, Leonard finds that he had been set up with the other family's daughter, Sandra (Shaw). She inquires about his interest in photography and notices a photo of a girl above his headboard. He explains he had been engaged to the girl for several years, but the relationship was broken off when it turned out both he and his fiancee carried the gene for TaySachs disease, which results in diseased children who generally don't live beyond age 12, so they would be unable to have healthy children. Leonard meets a new neighbor, Michelle (Paltrow), and is immediately attracted to her, choosing to ignore that she has a drug usage problem. He learns that she is dating a married partner in her law firm, Ronald (Koteas). At her request, Leonard agrees to meet Ronald and Michelle for dinner at a restaurant. The couple leave him later that evening, as they have plans to attend the Metropolitan Opera. Leonard returns home upset, but to his surprise, Sandra arrives, sent over by Leonard's parents. She is under the impression that Leonard wanted her to come by, but realizes by his surprised look, that she was set up. She apologizes for the misunderstanding and says that if he isn't interested, a lot of other guys are. Leonard says that he likes her, and they kiss and eventually make love, and with time, his relationship with Sandra deepens. Michelle calls Leonard and says she is sick. He takes her to the hospital, where she has a D&C for a miscarriage. She had not known she was pregnant and is even more upset that Ronald didn't respond to her calls. Leonard takes her home but Ronald arrives. Leonard hides while Ronald apologizes to Michelle for not having come to her aid. Michelle coldly asks Ronald to leave. She then asks Leonard to write something on her forearm with his finger while she falls asleep. Leonard writes "I love you". Two weeks later, Michelle meets Leonard on the roof of their building and tells him that she has broken up with Ronald and is going to San Francisco. Leonard tells her not to leave and professes his love for her. They have sex and plan to leave together the next day for San Francisco. On New Year's Eve, Leonard buys an engagement ring for Michelle. He is then summoned by Sandra's father and is offered a partnership in the family businesses, with the assumption that he is going to marry Sandra. Noticing the jeweler's gift bag Leonard is holding, the father assumes it is for Sandra; Leonard lies that it is. During his parents' New Year's Eve party, Leonard ducks out to the courtyard to meet Michelle. Michelle arrives ten minutes past departure time and tells Leonard that she isn't going to San Francisco, because Ronald, having learned Michelle is leaving him for California, decided to leave his wife and children for her. Distraught, Leonard breaks things off with her for good. Feeling desolate, Leonard heads to the beach, presumably intending to kill himself. When he drops a glove that Sandra had bought for him, he realizes that, in Sandra, he has found someone who loves him and with whom he can build a decent life. He picks up the glove and sees the boxed engagement ring lying on the sand, where he had thrown it from the boardwalk earlier. He returns to the party, where he gives Sandra the ring and embraces her in a prolonged hug. 
 Question: where Leonard meets Ronald and Michelle for dinner in this movie?
a restaurant

Context: The film begins some years in the future from this exact moment. We see ads everywhere (buildings, walls, bus stops, e.t.c) for the hit game Slayers, and how the star character Kable (Gerard Butler) has four battles left before he earns his freedom. We are then shown a battle in progress: a massive shootout inside a factory. Everyone in the game is controlled by players elsewhere. Characters get points for each kill and for saving a teammate. Some characters are shown to be doing menial tasks in the battlefield, seemingly unaware of all the violence around them. 17-year-old Simon (Logan Lerman) plays/controls Kable and leads him around the factory. After slaughtering most everyone in his way, Kable gets blasted outside of the factory. Kable manages to run to the safe point to win the battle. Afterward, the surviving characters are transported elsewhere. The other characters congratulate Kable on winning, since he now only has three battles left until freedom. Some of the other characters don't believe that anyone will be released from the game.The producer (Michael Weston) and Chief of Staff, Bob, (John de Lancie) for the Gina Parker Smith Show discuss their next guest for the show - genius recluse Ken Castle, the creator of Slayers. On the show, Gina (Kyra Sedgwick) talks about the achievements of Ken Castle (Michael C. Hall). He first created a game called Society, which is basically a Sims game but instead of controlling a fake character, the players control a real person and can make them do whatever they want. You can pay to control someone else, or you can get paid to be controlled. Society quickly became extremely popular and profitable, making Castle the richest person in the universe. Nine months ago Castle created Slayers, a controversial game which is supported by the federal government. Castle defends Slayers by stating that each character in the game, though they are real people, are all death row inmates who chose to sign up for the game instead of doing their prison sentence. If a convict can stay alive for thirty battles, they will be set free (though no one has ever survived that long). Some convicts are sent into battlefields with pre-engineered actions to do, and will be set free if they survive just one battle, but are unable to defend themselves (which makes their death rate extremely high). Also, the games are all televised on pay-per-view. Everyone in Slayers and Society has had nano-cells implanted into their brains, which makes it possible for them to be controlled by someone else. They can only be controlled in the perimeter of the game (meaning after the game is over, they get their control back).After the show is over, the signal is hacked into by Humanz, a resistance group. The Humanz Brother (Ludacris) condemns Castle and states that eventually we will all be his slaves if we continue down this road. Castle gets a kick out of it and has his men try to locate where the signal came from. In prison, a convict beats a guard to death and tries to escape but in the end, he fails. Kable sits by himself and thinks about his family. Freek (John Leguizamo) sits next to Kable. He talks about how Kable spooks everyone else when he sits by himself and is constantly thinking. He can't believe that Kable only has three battles left. Freek asks him why he's in prison. Kable has a quick flashback of a man bleeding in a room. Later on, while sitting in his cell, someone opens the slot of the door and hands Kable a picture of his wife and child. The female voice on the other side knows that his family is the only thing he fights for. She makes Kable sign an autograph for her son, David, and then takes a blood sample from his hand as proof of authenticity to increase the value of the autograph.Elsewhere, we see Kable's wife Angie (Amber Valletta) going to work as a character in Society. Practically all the game characters are dressed in ridiculous and skimpy costumes 
 Question: In the movie, Tillman convinces Castle's men to deactivate what?

nano cells