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: Do straws cause dry sockets when third molars are extracted?
Answer: There is no evidence that there is an increased incidence of dry sockets when using a straw in the first 2 days after third molars have been extracted.
Output:
no