Given the task definition and input, reply with output. 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: Is thinking life worth living . A population survey of Great Britain?
Answer: Reducing psychiatric morbidity in the population as a whole might also decrease the frequency of suicidal thoughts. Policies which improve social support at a population level might also have a large impact on prevalence of suicidal thoughts.
no