Definition: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Input: Question: Are mutations in the aryl hydrocarbon receptor interacting protein gene highly prevalent among subjects with sporadic pituitary adenomas?
Answer: AIP mutations do not appear to play a prominent role in sporadic pituitary tumorigenesis in this population of European subjects.
Output:
no