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: Do apolipoprotein E genotypes influence the age of onset in Huntington 's disease?
Answer: The ApoE genotype does not affect the course of HD significantly.
[EX A]: no

[EX Q]: Question: Do high-oxygen-transmissibility soft contact lenses induce limbal hyperaemia?
Answer: SCL wear induces a marked increase in limbal hyperaemia during open-eye wear, which is not seen either in the no lens situation or when EHD lenses are worn. The pattern of limbal hyperaemia for both the open and closed eyes during EHD lens wear is very similar to that for the no-lens situation. The mechanism whereby SCL induces excess limbal hyperaemia has not been absolutely established, but it may involve local hypoxia.
[EX A]: no

[EX Q]: Question: Is combined calcium and vitamin D supplementation superior to calcium supplementation alone in improving disturbed bone metabolism in patients with congestive heart failure?
Answer: A vitamin D3 supplement of 50 microg/day has no additional beneficial effects on markers of bone metabolism in CHF patients with low initial 25-hydroxyvitamin D concentrations if an adequate daily calcium intake is guaranteed.
[EX A]:
no