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.

Ex Input:
Question: Is cDK10 a target for aberrant DNA methylation in breast cancer?
Answer: CDK10 is not a target for aberrant DNA methylation in breast cancer.

Ex Output:
no


Ex Input:
Question: Are screening tests enough to detect hemineglect?
Answer: Hemineglect may not be recognized with single screening tests commonly used. The use of a standard battery is recommended to improve diagnostic sensitivity in individuals with various subtypes of hemineglect.

Ex Output:
no


Ex Input:
Question: Is [ Lung cancer in the Netherlands in the period 1989-1997 : the epidemic over yet ]?
Answer: The incidence and mortality of lung cancer among Dutch men decreased, but still in 1997 almost 20 men in the Netherlands died each day of lung cancer. Among women the end of the increase is not in sight and in 1997 over 5 women died each day of lung cancer.

Ex Output:

no