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 a gain-of-function mutation in the cardiac pacemaker HCN4 channel increasing cAMP sensitivity associated with familial Inappropriate Sinus Tachycardia?
Answer: This is the first report of a gain-of-function HCN4 mutation associated with IST through increased sensitivity to cAMP-dependent activation.

Ex Output:
yes


Ex Input:
Question: Is microvasculopathy observed in early or late endomyocardial biopsies related to angiographically confirmed transplanted heart coronary vasculopathy?
Answer: Microvasculopathy observed early or late after OHT was not related to angiographically confirmed CAV.

Ex Output:
no


Ex Input:
Question: Is occurrence of rheumatoid arthritis increased in the first degree relatives of a population based inception cohort of inflammatory polyarthritis?
Answer: There was no evidence of an important increased familial risk of RA in this community based sample. These data are compatible with others from immunogenetic studies showing only weak HLA associations with community ascertained RA.

Ex Output:

no