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.
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Question: Question: Is mYC a metastasis gene for non-small-cell lung cancer?
Answer: Potential markers for detection of metastasis were identified and validated for diagnosis of human biopsies. These markers may represent targets for future therapeutic intervention as they include genes such as Gata4 that are exclusively expressed during lung development.

Answer: yes

Question: Question: Is prooxidant-anti-oxidant balance associated with extent of coronary artery disease?
Answer: In conclusion, we found higher levels of oxidative stress in CAD+ patients compared to healthy subjects. The oxidation level was not related to measures of the extent of CAD such as number of stenosed vessels.

Answer: no

Question: Question: Does vitamin D fortification of milk products resolve hypovitaminosis D in young Finnish men?
Answer: Vitamin D fortification of milk products slightly but insufficiently improved the poor vitamin D status of young Finnish men during winter. Further supplementation is warranted in order to normalize vitamin D levels and to support achievement of maximum peak bone mass.

Answer:
no