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 the risk of uterine rupture increased with single- compared with double-layer closure : a Swedish cohort study?
Answer: There was no significant difference in the rate of uterine rupture when single-layer closure was compared with double -layer closure of the uterus.

Ex Output:
no


Ex Input:
Question: Does unloading of baroreceptors by carotid occlusion increase heart rate in fetal sheep?
Answer: We conclude that in contrast to adult animals, in fetal sheep carotid occlusion with subsequent unloading of baroreceptors does not increase heart rate even when the baroreflex had been activated by arterial hypertension. It seems likely that stimulation of carotid chemoreceptors prevents the expected baroreceptor mediated heart-rate response.

Ex Output:
no


Ex Input:
Question: Does sMARCE1 regulate metastatic potential of breast cancer cells through the HIF1A/PTK2 pathway?
Answer: SMARCE1 plays an essential role in breast cancer metastasis by protecting cells against anoikis through the HIF1A/PTK2 pathway. SMARCE1-mediated PTK2 activation likely plays a key role in promoting metastasis of basal-like and luminal B subtype of breast tumors.

Ex Output:

yes