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 statin use associated with reduced risk of skin cancer : a meta-analysis?
Answer: Our meta-analysis does not support a potential role of statin use in the prevention of skin cancer.

Output: no

Input: Consider Input: Question: Does mammographic density correlate with Ki-67 expression or cytomorphology in benign breast cells obtained by random periareolar fine needle aspiration from women at high risk for breast cancer?
Answer: Given the lack of correlation of mammographic breast density with either cytomorphology or Ki-67 expression in RPFNA specimens, mammographic density and Ki-67 expression should be considered as potentially complementary response biomarkers in breast cancer chemoprevention trials.

Output: no

Input: Consider Input: Question: Are genes related to emphysema enriched for ubiquitination pathways?
Answer: This study implicates modified protein ubiquitination and degradation as a potentially important pathway in the pathogenesis of emphysema.
Output: yes