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.
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Question: Question: Does oral contraceptive use by teenage women affect peak bone mass : a longitudinal study?
Answer: Oral contraceptive pill use by healthy, white, teenage females does not affect acquisition of peak bone mass.

Answer: no


Question: Question: Are proliferation of colo-357 pancreatic carcinoma cells and survival of patients with pancreatic carcinoma altered by insulin glargine?
Answer: Regular human insulin and insulin glargine may be used to treat diabetes in patients with pancreatic cancer.

Answer: no


Question: Question: Does endogenous elevation of plasma cholecystokinin prevent gallstones?
Answer: Together with the previously observed decrease in CCK-stimulated gall bladder emptying in mice fed a lithogenic diet, our findings suggest that a lithogenic diet causes gallstone formation by impaired CCK secretion in addition to reduced gall bladder sensitivity to CCK.

Answer:
no