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 mPGES-2 deletion remarkably enhance liver injury in streptozotocin-treated mice via induction of GLUT2?
Answer: mPGES-2 deletion enhanced STZ-induced liver toxicity possibly via GLUT2-mediated STZ uptake, independently of diabetes mellitus.

Ex Output:
yes


Ex Input:
Question: Is hyperglycemia associated with increased risk of patient delay in pulmonary tuberculosis in rural areas?
Answer: Patient delay appears to be a serious problem in this rural area with a high prevalence of tuberculosis. Hyperglycemia is independently associated with an increased probability of patient delay, which, in turn, may result in more serious clinical manifestations.

Ex Output:
yes


Ex Input:
Question: Is the Prevalence of Nodular Regenerative Hyperplasia in Inflammatory Bowel Disease Patients Treated with Thioguanine Associated with Clinically Significant Liver Disease?
Answer: The prevalence of NRH was 6% in liver biopsies obtained from IBD patients treated with thioguanine. Histopathological irregularities including NRH were not associated with clinically significant findings over the period of observation.

Ex Output:

no