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: Consider Input: Question: Is congenital penile pathology associated with abnormal development of the dartos muscle : a prospective study of primary penile surgery at a tertiary referral center?
Answer: Congenital penile pathology (hypospadias, buried penis) is associated with structural anomalies in dartos tissue. Further research is needed to unveil the pathophysiology of the condition.

Output: yes


Input: Consider Input: Question: Does switching types of drug-eluting stents prevent repeated in-stent restenosis in patients with coronary drug-eluting stent restenosis?
Answer: A strategy involving repeated DES implantation was superior to POBA for preventing recurrent restenosis. Treatment with a different type or generation of DES does not appear to reduce the incidence of TLR. Moreover, we identified certain useful factors for facilitating appropriate and early triage in the patients with repeated DES ISR.

Output: no


Input: Consider Input: Question: Are longer durations of antitumour necrosis factor treatment associated with reduced risk of cardiovascular events in patients with rheumatoid arthritis?
Answer: Anti-TNF therapy was associated with a significantly lower risk of cardiovascular events among patients with RA, older patients with RA and patients without prior exposure to methotrexate.


Output: yes