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 restrictive left ventricular filling pattern result from increased left atrial pressure alone?
Answer: The restrictive filling pattern is distinguished from overfilling of a normal ventricle by a reduced and delayed E' and a shortened E deceleration time that reflect slow relaxation and increased LV stiffness.

Ex Output:
no


Ex Input:
Question: Does comprehensive analysis suggest simple processes underlying EEG/ERP - demonstration with the go/no-go paradigm in ADHD?
Answer: We show how these processes accord with and provide insight on the waveforms reported in the literature.

Ex Output:
yes


Ex Input:
Question: Do both host and graft vessels contribute to revascularization of xenografted human ovarian tissue in a murine model?
Answer: Host and graft vessels contributed sequentially to graft revascularization: murine angiogenesis initiated reperfusion from day 5 and, by day 10, human angiogenesis was shown to participate in graft revascularization. Host and graft angiogenesis are potential targets to reduce the avascular period after grafting.

Ex Output:

yes