Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Question: Does alfentanil increase resistance of the respiratory system in ASA I patients ventilated mechanically during general anesthesia?
Answer: No respiratory adverse effect was reported after alfentanil iv administration.
Student:
no