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.

Example Input: Context: The film starts on June 16, 1994 with Jesse meeting Celine on a train from Budapest and striking up a conversation with her. Jesse is going to Vienna to catch a flight back to the United States, whereas Celine is returning to university in Paris after visiting her grandmother. When they reach Vienna, Jesse convinces Celine to disembark with him, saying that 10 or 20 years down the road, she might not be happy with her marriage and might wonder how her life would have been different if she had picked another guy, and this is a chance to realize that he himself is not that different from the rest; in his words, he is "the same boring, unmotivated guy." Jesse has to catch a flight early in the morning and does not have enough money to rent a room for the night, so they decide to roam around in Vienna. After visiting a few landmarks in Vienna, they share a kiss at the top of the Wiener Riesenrad at sunset and start to feel a romantic connection. As they continue to roam around the city, they begin to talk more openly with each other, with conversations ranging from topics about love, life, religion, and their observations of the city. Celine tells Jesse that her last boyfriend broke up with her six months ago, claiming that she "loved him too much". When questioned, Jesse reveals he had initially come to Europe to spend time with his girlfriend who was studying in Madrid, but they had broken up when she was avoiding him while he was there. He decided to take a cheap flight home, via Vienna, but it did not leave for two weeks so he bought a Eurail pass and traveled around Europe. When they are walking alongside the Donaukanal (Danube canal) they are approached by a man who, instead of begging, offers to write them a poem with a word of their choice in it. Jesse and Celine decide on the word "milkshake", and are soon presented with the poem Delusion Angel (written for the film by the poet David Jewell). In a traditional Viennese cafe, Jesse and Celine stage fake phone conversations with each other, playing each other's friends they pretend to call. Celine reveals that she was ready to get off the train with Jesse before he convinced her. Jesse reveals that after he broke up with his girlfriend, he bought a flight that really was not much cheaper, and all he really wanted was an escape from his life. They admit their attraction to each other and how the night has made them feel, though they understand that they probably will not see each other again when they leave. They simply decide to make the best of what time they have left, ending the night with the implication of a sexual encounter between them. At that point, Jesse explains that if given the choice, he would marry her instead of never seeing her again. The film ends the next day at the train station, where, just as Celine's train is about to leave, the couple decides not to exchange any contact information but instead to meet at the same place in six months. 
 Question: Jesse and Cline decide to meet again at the train station after how many months?
Example Output: six months

Example Input: Context: The military aspect of the war began with the Armistice of Mudros. The military operations of the Greco-Turkish war can be roughly divided into three main phases: the first phase, spanning the period from May 1919 to October 1920, encompassed the Greek Landings in Asia Minor and their consolidation along the Aegean Coast. The second phase lasted from October 1920 to August 1921, and was characterised by Greek offensive operations. The third and final phase lasted until August 1922, when the strategic initiative was held by the Turkish Army. 
 Question: What was the shortest phase of the war?
Example Output: the second phase

Example Input: Context: Can you name some fossils? How about dinosaur bones or dinosaur footprints? Animal skeletons, teeth, shells, coprolites (otherwise known as feces), or any other remains or traces from a living creature that becomes rock is a fossil. The same processes that formed these fossils also created some of our most important energy resources, fossil fuels. Coal, oil, and natural gas are fossil fuels. Fossil fuels come from living matter starting about 500 million years ago. Millions of years ago, plants used energy from the Sun to form sugars, carbohydrates, and other energy-rich carbon compounds. As plants and animals died, their remains settled on the ground on land and in swamps, lakes, and seas (Figure 1.1). Over time, layer upon layer of these remains accumulated. Eventually, the layers were buried so deeply that they were crushed by an enormous mass of earth. The weight of this earth pressing down on these plant and animal remains created intense heat and pressure. After millions of years of heat and pressure, the material in these layers turned into chemicals called hydrocarbons (Figure 1.2). Hydrocarbons are made of carbon and hydrogen atoms. This molecule with one carbon and four hydrogen atoms is methane. Hydrocarbons can be solid, liquid, or gaseous. The solid form is what we know as coal. The liquid form is petroleum, or crude oil. Natural gas is the gaseous form. The solar energy stored in fossil fuels is a rich source of energy. Although fossil fuels provide very high quality energy, they are non-renewable. Click image to the left or use the URL below. URL: 
 Question: methane is a molecule made with one carbon and _____ hydrogen atoms.
Example Output:
four