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.
Q: Question: Does aromatase gene polymorphism influence clinical phenotype and response to oral contraceptive pills in polycystic ovary syndrome women?
Answer: The differences between c-PCOS and ov-PCOS cannot be explained by the genetic variation at SNP50 in the CYP19 gene.
A:
no