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.
Input: Question: Do elevated levels of preoperative circulating CD44 lymphocytes and neutrophils predict poor survival for non-small cell lung cancer patients?
Answer: CD44(+) lymphocytes along with neutrophils could serve as an independent prognostic marker for NSCLC patients.
Output:
yes