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.

Example input: Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay.
Answer: whether mood affects their learning ability
Example output: Researchers did experiments on kids in order to find out _ .
Example explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.
Q: Article: The National Air and Space Museum in Washington, DC has thousands of objects on display, including the 1903 Wright Flyer, Charles Lindbergh's Spirit of St. Louis, the Apollo 11 Command Module Columbia, and a lunar rock you can touch. In addition to our exhibition galleries, you may want to visit the Albert Einstein Planetarium, Lockheed Martin IMAX Theater, and the Public Observatory on the east end. There are many things to do at the Museum in DC. We offer daily tours and educational activities for both children and adults. We also have scheduled lectures and events throughout the year. Hours and Admission:Open every day except December 25. Admission is free. Regular Hours:1000 am to 5:30pm Extended Hours: 10:00 am to 7:30pm December 26----30,2014 March 30----April 20, 2015 Fridays and Saturdays, April 24----May 16,2015 May 17----September 7, 2015 VISITING TIPS: Limit the number of bags: All visitors are screened through metal detectors upon entry. The fewer items you bring inside the Museum, the faster your entry. Before you visit, please review the list of prohibited items,which include pocket knives and tripods . Visitors carrying prohibited items will not be allowed inside the Museum, so please leave them at home or in your car. No Food or Drink: Only bottled water is permitted in the Museum. You may only consume food and other drinks in the Food Court, not in the Museum. Groups who bring food are encouraged to picnic on the National Mall. Please Take Photos: You are welcome to take photos for personal use. However, tripods and monopods are not permitted without approval. First Aid: The Museum has a First Aid office and a nurse on duty. Please contact the nearest security officer or the Welcome Center for assistance. Visit the Welcome Center: At our Welcome Center in the South Lobby, staff and volunteers can answer any questions you have during your visit. Open:10:00 am to 5:30 pm Phone: 202-633-2214 E-mail: NASM-visitorservice@si.edu
Answer: everyone can pay a visit to without buying tickets
A:
According to the passage. the National Air and Space Museum is a museum_.