Q: 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.
Question: Does additional exercise change hospital or patient outcomes in older medical patients : a controlled clinical trial?
Answer: Additional physiotherapy intervention during hospitalisation did not significantly improve hospital or patient outcomes.
A:
no