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 question for the answer based on the given article.
Example: Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
Output: How many books are there in the British Library?
In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

New input case for you: Article: A teenager realized her dream of becoming a professional model three years after a serious car accident. Marita Davies was on her way home from a party when the crash happened. The car that Marita took as a passenger was going the wrong way and crashed into another car driven by a drunken driver named David Hudson, which left her with a broken leg and back. It took the firefighters more than two hours to free the teenager from the damaged car before she was taken to hospital. Marita was in a wheelchair for a year after being bed-ridden for nine months. Marita feared her dream of a modeling career was over. She said, "I was extremely upset and shocked when I knew about my terrible injuries. I thought my dream of becoming a model was over. My leg and back were broken. The crash had broken my confidence and I became quiet and spent less time with other people. I was 16, and at that age all I wanted to do was to go out with my friends." But as her health took a turn for the better, Marita finally came out of the wheelchair and learned to walk. She decided she would still try to follow her dreams, and sent some photos off to some modeling agencies. She did a few unpaid jobs while studying at college. Soon, paid commercial modeling jobs started coming in. Marita was a bit doubtful at first, because the crash had left her with huge scars on her leg and back. She was worried that people wouldn't want her to model for them, but this didn't stop her. Marita had done amazingly well to overcome everything that had been thrown at her in the three years. Finally, Marita became a professional model in 2013. She was signed up for advertising campaigns and appeared in TV ads.
Answer: In 2011.
Output:
When did the accident happen?