Given the task definition, example input & output, solve the new input case.
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: 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
Output: Researchers did experiments on kids in order to find out _ .
It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

New input case for you: Article: My friend Kathy and I were going to Colorado Springs for holiday. The only problem was, I didn't have any luggage to pack my belongings in. My friend Debbie offered to lend me a suitcase that belonged to her father, who had passed away long ago. "I don't know if you'll want to use it," she said so gently, "it's very old, worn out, and such an ugly yellow color1." I was so touched by her offer to lend something that belonged to her father, but I was also concerned about the possibility of it being damaged or lost. She insisted that I take it. So with the suitcase safely in hand, I boarded the train with Kathy. We spent two days and one night on the train, sleeping in our seats. As we slept, we were awakened at times, by the noises of the train pulling in and out of the stations. The next morning we eagerly awaited the announcement: Next stop, Colorado Springs. But suddenly, there came another announcement over the loud speaker. "During one of the overnight stops, many pieces of luggage were mistakenly removed from the train and left at the wrong location." Kathy and I just looked at each other, as I felt the disappointment swell. Could my worst fear be coming true, was Debbie's suitcase lost? Just then two train conductors passed our seats. One of them jokingly said to the other, "Did you ever see such an old, ugly, brighter yellow, piece of luggage in all of your life?" Before the other conductor could answer, I screamed, "YES, MY SUITCASE MADE IT!" The two conductors stopped in their tracks! and, very red in the face, couldn't seem to apologize enough for having insulted my suitcase. When I returned it, I couldn't wait to get the suitcase back into Debbie's safe hands. She asked, "Did everything go well on the trip?" Somehow, I just couldn't resist telling her what had happened. She laughed heartily. When I recall the golden suitcase, I'm reminded, that like the suitcase, we can see ourselves as too old, useless, worn out, and of little value. Or, we can take a closer look and realize that we are one of God's most valued creations -- unique, and holding inside our most valuable possessions -- that of love, faith, hope, and wisdom.
Answer: its safety
Output:
After borrowing the suitcase, the author was worried about _ .