Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Input: Consider Input: Khin Sok, (Khmer: , born in 1942, Kandal Province, late French colonial Cambodia, died on 10. October 2011 in Paris) was a Cambodian historian, linguist, literature and arts scholar.

Output: What is the city of birth of Khin Sok?


Input: Consider Input: A rocket is propelled into space by particles flying out of one end at high speed (see Figure 1.1). A rocket in space moves like a skater holding the fire extinguisher. Fuel is ignited in a chamber, which causes an explosion of gases. The explosion creates pressure that forces the gases out of the rocket. As these gases rush out the end, the rocket moves in the opposite direction, as predicted by Newtons Third Law of Motion. The reaction force of the gases on the rocket pushes the rocket forward. The force pushing the rocket is called thrust. Nothing would get into space without being thrust upward by a rocket. 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. The Moon was Earths first satellite, but now many human- made "artificial satellites" orbit the planet. Thousands of artificial satellites have been put into orbit around Earth (Figure 1.2). We have even put satellites into orbit around the Moon, the Sun, Venus, Mars, Jupiter, and Saturn. There are four main types of satellites. Imaging satellites take pictures of Earths surface for military or scientific purposes. Imaging satellites study the Moon and other planets. Communications satellites receive and send signals for telephone, television, or other types of communica- tions. Navigational satellites are used for navigation systems, such as the Global Positioning System (GPS). The International Space Station, the largest artificial satellite, is designed for humans to live in space while conducting scientific research. Humans have a presence in space at the International Space Station (ISS) (pictured in Figure 1.3). Modern space stations are constructed piece by piece to create a modular system. The primary purpose of the ISS is scientific research, especially in medicine, biology, and physics. Craft designed for human spaceflight, like the Apollo missions, were very successful, but were also very expensive, could not carry much cargo, and could be used only once. To outfit the ISS, NASA needed a space vehicle that was reusable and able to carry large pieces of equipment, such as satellites, space telescopes, or sections of a space station. The resulting spacecraft was a space shuttle, shown in (Figure 1.4). Satellites operate with solar panels for energy. A photograph of the International Space Station was taken from the space shuttle Atlantis in June 2007. Construction of the station was completed in 2011, but new pieces and experiments continue to be added. A space shuttle has three main parts. The part you are probably most familiar with is the orbiter, with wings like an airplane. When a space shuttle launches, the orbiter is attached to a huge fuel tank that contains liquid fuel. On the sides of the fuel tank are two large "booster rockets." All of this is needed to get the orbiter out of Earths atmosphere. Once in space, the orbiter can be used to release equipment (such as a satellite or supplies for the International Space Station), to repair existing equipment such as the Hubble Space Telescope, or to do experiments directly on board the orbiter. When the mission is complete, the orbiter re-enters Earths atmosphere and flies back to Earth more like a glider than an airplane. The Space Shuttle program did 135 missions between 1981 and 2011, when the remaining shuttles were retired. The ISS is now serviced by Russian Soyuz spacecraft. Atlantis on the launch pad in 2006. Since 1981, the space shuttle has been the United States primary vehicle for carrying people and large equipment into space.

Output: which of newtons laws of motion explains rocket propulsion?


Input: Consider Input: One man tells of driving on a long and lonely road, the last 65 miles of it unpaved, in order to watch Indian dances in the state of Arizona.After the dances, he returned to his car only to find that it had a flat tire.He put on the spare and drove to the only service station in that town. "Do you fix flats?" he inquired of the attendant. "Yes," came the answer. "How much do you charge?" he asked. With a twinkle in his eye, the man replied, "What difference does it make?" This is what has been called a "Hobson's choice".A Hobson's choice is a situation that forces a person to accept whatever is offered or go without. According to Barbara Berliner, the phrase was inspired by sixteenth-century entrepreneur Thomas Hobson.There was no choice by the customer -- it was strictly Hobson's choice. But often we really have a choice, and the choice does make a difference.We may not always believe it.We may feel as if we have no choice, but almost always there is a choice in the matter.And when we realize that we do most things by choice, then we are taking control of our own lives. Someone challenged me to try an experiment that completely changed my perspective(,)."For the next seven days," he said, "remove the words 'I have to' from your vocabulary and say 'I choose to'.Don't say, 'I have to work late tonight'.Instead, say, 'I choose to work late'.When you choose to do it, you take control of your life.Instead of saying 'I have to stay home', try 'I choose to stay home'.The way you spend your time is your choice.You are responsible.You have control." In just seven days I was no longer saying "I have to" and I felt better about my decisions.I learned that there is very little in my life I actually have to do.You and I decide to do certain things because we believe that it will be for the best.When we remove "I have to" from our vocabularies, we take control. Try it for a week and you see what happens.I think you'll see it's a change for the better.


Output: What's the best title of this passage?