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 transgenic Cry1Ab rice impact ecological fitness and predation of a generalist spider?
Answer: The transgenic Cry1Ab rice lines tested in this study had no adverse effects on the survival, developmental time and fecundity of P. pseudoannulata in the laboratory or on predation under field conditions. This suggests that this important predator would not be harmed if transgenic Cry1Ab rice were commercialized.

Output: no


Input: Consider Input: Question: Does anticoagulant or aspirin treatment affect the positive predictive value of an immunological fecal occult blood test in patients undergoing colorectal cancer screening : results from a nested in a cohort case-control study?
Answer: The positive predictive value of i-FOBT for significant neoplasia is not affected by ongoing anticoagulant or chronic low-dose aspirin therapy. This finding suggests that there is no need to interrupt these treatments before i-FOBT for CRC screening.


Output: no