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 carriage of the methylenetetrahydrofolate reductase ( MTHFR ) C677T polymorphism influence the first and second trimester uterine artery Doppler flow?
Answer: In summary, the data presented in this adequately powered, prospective, controlled study establish that the MTHFR C677T polymorphism does not influence Doppler flow measurements.

Ex Output:
no


Ex Input:
Question: Does interferon responsiveness change in treatment-experienced hepatitis C subjects : implications for drug development and clinical decisions?
Answer: We contend that P/R-experienced subjects are represented within treatment-naive subjects. There are 2 important implications of this finding: (1) from a drug development perspective, a successful direct antiviral plus P/R therapy (IFN-based triple therapy) trial in P/R-experienced subjects may serve as supportive evidence in treatment-naive subjects; and (2) from a clinical decision perspective, previous P/R exposure should not alter new treatment decisions involving IFN-based triple therapy, as the IFN responsiveness to a second course of IFN is comparable.

Ex Output:
no


Ex Input:
Question: Do ileal neuroendocrine tumors show elevated activation of mammalian target of rapamycin complex?
Answer: mTOR is overexpressed in ileal NETs. Additionally, the loss of ATRX expression was registered, thus underlying a tumorigenic role in a subgroup of these tumors. To enable potential therapeutic application of mTOR inhibitors, further trials with larger study groups are needed.

Ex Output:

yes