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.

[Q]: Question: Does statin therapy improve lung function in asthma : a meta-analysis of randomized controlled trials?
Answer: In conclusion, there is currently insufficient evidence to show that statins improve lung function in patients with asthma.
[A]: no


[Q]: Question: Is previous laparotomy a contraindication to laparoscopy-assisted gastrectomy for early gastric cancer?
Answer: There was no difference in outcome following LAG between the PSURG and NSURG groups in the present study. The PSURG patient is not contraindicated for LAG assuming careful attention is given for all operative procedures, including port insertion and dissection of intra-abdominal adhesions.
[A]: no


[Q]: Question: Are clinical concentrations of morphine cytotoxic on proliferating human fibroblasts in vitro?
Answer: Cytotoxic effects of morphine are exposure, time and concentration dependent. Simulating aspects of inflammatory conditions seems to increase resistance to morphine cytotoxicity especially in the presence of higher concentration and longer exposure times.
[A]:
yes