Definition: Craft one correct answer to the question given in input. To make it more interesting, try to use non-stereotypical language if possible. Make sure your correct answer is reasonably long, consistent with the context, and requires common sense (instead of explicit extraction from the context.) In your answer, use as few words as possible from the given context. Use a response that is uncommon/non-stereotypical, so that it is less predictable. To be less repetitive, please vary your language for each question.
Input: Context: Apparently I ' m very allergic to cats . Did n't know that exactly until just these past two weeks . I fell asleep on the couch in the living room two weekends ago and had terrible sinus reactions . But here 's the rub .
Question: Why did falling asleep on the couch and becoming ill lead the speaker to realize they must be allergic to cats ?
Output:
The cat hair is very prevalent on furniture in the speaker 's house , and the couch is one example.