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.

Example Input: Question: Does presence of the full-length KIR2DS4 gene reduce the chance of rheumatoid arthritis patients to respond to methotrexate treatment?
Answer: Our results suggest that the response of RA patients with medium ESR values to MTX treatment may be dependent on the full-length KIR2DS4 gene.
Example Output: yes

Example 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.
Example Output: yes

Example Input: Question: Is routine prophylactic granulocyte colony stimulating factor ( GCSF ) necessary with accelerated ( dose dense ) paclitaxel for early breast cancer?
Answer: Accelerated paclitaxel in breast cancer patients without prophylactic GCSF is safe, avoids side effects, reduces costs and is not associated with an increase risk of neutropenic sepsis or treatment delays.
Example Output:
no