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.

Ex Input:
Question: Does extracorporeal shockwave therapy improve short-term functional outcomes of shoulder adhesive capsulitis?
Answer: Our results showed that ESWT can be an alternative treatment, at least in the short-term, for primary adhesive capsulitis of the shoulder. In addition, all of the side effects of ESWT were transient and tolerable.

Ex Output:
yes


Ex Input:
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.

Ex Output:
no


Ex Input:
Question: Do vascular patterns in mature hypertrophic burn scars treated with fractional CO2 laser?
Answer: Mature hypertrophic burn scars treated with a fractional CO2 laser showed a statistically significant increase in vascular density in the superficial dermis. A non-statistical decrease in clinically perceived erythema and improvement of overall appearance was seen. To our knowledge, this is the first report of increased vascular density in burn scars treated with fractional CO2 laser and suggests our prior assumptions on causes of erythema in mature hypertrophic scars may need to be challenged.

Ex Output:

yes