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: Is evidence that the lung Adenocarcinoma EML4-ALK fusion gene caused by exposure to secondhand tobacco smoke during childhood?
Answer: The EML4-ALK fusion gene is not enriched in tumors from individuals exposed to SHS during childhood.
[A]: no


[Q]: Question: Is the ribbon-associated protein C-terminal-binding protein 1 essential for the structure and function of retinal ribbon synapses?
Answer: Overall the results suggest that CtBP1 protein is not essential for the formation of functional ribbon synapses in the retina.
[A]: no


[Q]: Question: Does severe astigmatic blur interfere with spectacle lens compensation?
Answer: Severe astigmatic blur does not interfere with spectacle lens compensation. From this it can be inferred that the average amount of blur is not an important error signal for spectacle lens compensation and therefore probably not for emmetropization either. These results strengthen the case that the sign of defocus is used to direct eye growth.
[A]:
no