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: Do differential behavior patterns in cynomolgus monkey Macaca fascicularis in home cage in response to human gaze?
Answer: These results indicate that, even in their home cage, monkeys display a heightened level of awareness when gazed upon by a human observer, suggesting that human gaze may elicit emotional reactions. Further, under the human gaze, distinct behavioral subpatterns were apparent within the monkey cohort in our study, indicative of subgroups within the cohort.

Ex Output:
yes


Ex Input:
Question: Does protamine affect the formation of cGMP or cAMP in pig vascular smooth muscle cells in response to vasodilators?
Answer: These experiments show that protamine does not alter the responses of the intracellular second messengers, cGMP and cAMP, to the vasodilators sodium nitroprusside, atrial natriuretic peptide, isoproterenol, and forskolin. These results do not support the hypothesis that protamine sensitizes vascular smooth muscle cells to the endothelium-derived relaxing factor, nitric oxide.

Ex Output:
no


Ex Input:
Question: Is manometry of the upper esophageal sphincter and pharynx useful in unselected patients referred for esophageal testing?
Answer: An unexpected UES/P finding resulted in a change in therapy in only six of the manometries. Barium esophagogram was diagnostic of the oropharyngeal abnormality in nearly two-thirds of the patients in whom it was clinically suspected. These data, along with limited therapeutic options, suggest limited usefulness for routine UES/P manometry.

Ex Output:

no