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 Q]: 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 A]: no

[EX Q]: Question: Are mannose-binding lectin polymorphisms associated with rheumatoid arthritis -- confirmation in two large cohorts?
Answer: MBL genotype groups are not associated with RA disease susceptibility or severity in this large study including a confirmation cohort. Compared with previous smaller studies these results add to more definite conclusions.
[EX A]: no

[EX Q]: Question: Is intraocular pressure associated with acute mountain sickness?
Answer: IOP measured at high altitude is not associated with the diagnosis of AMS. Other approaches to diagnose AMS easily and accurately are needed.
[EX A]:
no