Detailed Instructions: 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.
Q: Question: Does sitagliptin , an dipeptidyl peptidase-4 inhibitor , alter the pharmacokinetics of the sulphonylurea , glyburide , in healthy subjects?
Answer: Sitagliptin does not alter the pharmacokinetics of glyburide in healthy subjects.
A:
no