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: Does systemic methotrexate to treat ectopic pregnancy affect ovarian reserve?
Answer: Single-dose MTX is a safe first-treatment choice that does not compromise future reproductive outcomes in women who are diagnosed with EP after ART.
Output:
no