Detailed Instructions: 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.
Problem:Question: Do long-term lung cancer survivors have permanently decreased quality of life after surgery?
Answer: NSCLC survivors may suffer postoperatively from permanently reduced long-term HRQoL compared to an age- and gender-matched general population. This is essential patient information as more patients are surviving longer.
Solution:
yes