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: You could feel sorry for Alberto Torres, who is blind. The last thing he remembers seeing was his daughter being born 13 years ago. Then the world went blank; he can only imagine what his only child looks like now, as a teenaged honor student. Bad luck is no stranger to this warm and thoughtful 37-year-old man. His mother died of cancer when he was 4, and his father, who was often ill, had to give him up to the care of the state when he was 11. He later worked for 19 years in a workshop making household goods, deathly boring work. Earlier this month, Alberto Torres's wife, who had just been laid off from her job, had to have a breast removed due to cancer and now faces a year of radiation treatments. Things seemed always to go from almost incredibly bad to worse. Even Mr. Torres's good luck has a dark side: Five years ago, his lovely guide dog pulled him out of the path of a truck. Mr. Torres was not hurt. The dog was killed. But Mr. Torres does not feel sorry for himself. "These are just little bumps you have to go over in your life," he said. At 5 a.m. on a recent morning, we caught up with Mr. Torres at a subway stop in Brooklyn, New York, near where he lives in a third-floor apartment (with no elevator). He had been up since 3 a.m., feeding his new dog, making coffee, getting ready. "When you're blind, it takes a little longer to do things," he said. Mr. Torres was beginning his two-hour trip to his job developing film in the X-ray department of the emergency room of the Bronx hospital. He would take the G train to Queens Plaza station to the R train, heading towards Manhattan. He would then ride the R train to 59th Street where he would walk upstairs to switch to the Number 6 train. At one point along the journey, he might chat with a stranger. At another, someone would pat his dog, calling him by name. People offered assistance, even seats. At 125th Street, Mr. Torres would transfer to the Number 4 train by crossing the platform. At 149th Street, he would go down to the Number 2. He would take that to East 180th Street where he nearly always has a long wait for his final train, to Pelham Parkway. Then he and his dog would walk 20 minutes to the hospital. It was a hard job to come by. Before he got the job, Mr. Torres was determined to escape the workshop run by an organization dedicated to help people who can't see. He wanted a job developing X-ray film, something that everyone must do in the dark. He had to handle the long trip, as well as the work. "Our philosophy here is that blind people can do just about anything except drive buses," it was the thinking about disabled people at the Bronx hospital. "We find what a person can do rather than what he can't do," said the hospital's director. One day a while ago marked the first anniversary of Mr. Torres's hiring. He developed 150 or so X-rays, his usual output, to celebrate. Mr. Torres works by himself in a small, dark room that smells of chemicals. He cannot wear gloves, because he needs to feel. It is hard work, related to emergency of lives. His immediate supervisor says he trusts him 100%. Mr. Torres makes $20,000 a year. But his motivation goes beyond money. "If I start feeling like a victim, that makes me bitter. And why be bitter? That makes you go into a hole and stay there." he said. "I'm not doing anything out of the ordinary," insisted Mr. Torres as he quickly completed the task.
Answer: his daughter was just born
Output:
Mr. Torres became blind when _ .