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In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
question:
Article: It would be very exciting to be a reporter on a newspaper. As soon as a reporter's boss gives him a story to write, the reporter is on the job. He keeps his mind on what he is going to do. He does not begin writing the story until he knows what he should find out. He must know why he should write the story. At times a reporter must search hard to find all of the facts he needs for a story. The facts may not be right under his nose. To find the facts, he has to recognize important details. While gathering information for a story, he asks himself questions:Should I use this information? Is this an important fact? A reporter writes the story as fast as he can, so it can go right away into the newspaper. The story also needs a headline, which tells very quickly what the news story is about and is printed bigger and blacker than the rest of the news story. Every big newspaper has many reporters,because many stories are needed in the newspaper. Would you like to be one? 
 Answer: he wants it to go into the newspaper quickly
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A reporter writes the story as fast as possible because   _  .


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Article: Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing decisions that denied victory to their team. A researcher was appointed to study the performance of some top referees. The researcher organized an experimental tournament involving four youth teams. Each match lasted an hour, divided into three periods of 20 minutes during which different referees were in charge. Observers noted down the referees' errors, of which there were 61 over the tournament. Converted to a standard match of 90 minutes, each referee made almost 23 mistakes, a remarkably high number. The researcher then studied the videotapes to analyse the matches in detail. Surprisingly, he found that errors were more likely when the referees were close to the incident. When the officials got it right, they were, on average, 17 meters away from the action. The average distance in the case of errors was 12 meters. The research shows the optimum   distance is about 20 meters. There also seemed to be an optimum speed. Correct decisions came when the referees were moving at a speed of about 2 meters per second. The average speed for errors was 4 meters per second. If FIFA, football's international ruling body, wants to improve the standard of refereeing at the next World Cup, it should encourage referees to keep their eyes on the action from a distance, rather than rushing to keep up with the ball, the researcher argues. He also says that FIFA's insistence that referees should retire at age 45 may be misguided. If keeping up with the action is not so important, their physical condition is less critical. 
 Answer: analyse the causes of errors made by football referees
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The experiment conducted by the researcher was meant to   _  .


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Article: When I was a boy, my father told me that he could do anything he wanted to.Dad said that he wanted to be the first to develop color1 prints in our city, and so he did.  When I was 16, Dad looked closely at the violin I played and announced that he wanted to make one. He read about violin making, and then became a violinmaker at the age of 43.He bought the tools and materials, opened a small store and set Mom up as the shopkeeper, while he worked at a local company. He retired from the company 17 years later and continued to make violins and other instruments. Dad often guessed why the Stradivarius violins sound so beautiful. Some experts claimed that it was the unique varnish    that gave those instruments their beautiful sound.  Dad argued that chemists could analyze the varnish--if that were the answer. One of Dad's friends asked him once which kind of wood was used to make violins.When Dad explained that the top was made of spruce   , his friend said that he had an old piece of spruce Dad might be interested in. He worked for the next 12 months making a violin from the wood that his friend had given him. It proved to be a superior violin and it would become Dad's masterpiece. He was convinced that the secret of the Stradivarius sound was in the wood itself. Later, the instrument was stolen.Dad's spirit was broken by the robbery, and he stopped making instruments.  But he kept the music shop until he was 80 years old, selling guitars and violins.        My father has been gone for 14 years now. The violin has been missing for more than 25 years.Somewhere a musician is playing a late 20th century violin with an excellent tone. The owner today may never understand why this ordinary-looking violin sounds so much like a Stradivarius. 
 Answer: to prove that his father could do anything he wanted to
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Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The author mentions his father's developing color1 prints  _  .


