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: Does single copy of variant CYP2A6 alleles confer susceptibility to liver dysfunction in patients treated with coumarin?
Answer: No evidence was obtained that the studied polymorphism in CYP2A6 is a determinant of the coumarin-associated liver dysfunction.

Ex Output:
no


Ex Input:
Question: Is variation in mortality among populations higher for pymetrozine than for imidacloprid and spiromesifen in Trialeurodes vaporariorum in greenhouses in Finland?
Answer: High variation in resistance levels to pymetrozine among populations within natural whitefly dispersal limits reflects variation in the usage of this compound among individual greenhouse crop producers. Thus, resistance management is recommended at the individual greenhouse crop producer level, even in a dense production cluster. © 2014 Society of Chemical Industry.

Ex Output:
yes


Ex Input:
Question: Is cytoplasmic YAP expression associated with prolonged survival in patients with lung adenocarcinomas and epidermal growth factor receptor tyrosine kinase inhibitor treatment?
Answer: High cytoplasmic YAP expression predicted a good clinical outcome for patients with lung adenocarcinoma and in EGFR-TKI-treated patients. Therefore, YAP may play a role in EGFR-TKI-treated lung cancer, and YAP targeting may enhance therapeutic effects in combination with other cancer drugs.

Ex Output:

yes