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 overexpression of long noncoding RNA HOTAIR predict a poor prognosis in patients with cervical cancer?
Answer: our data indicate that high expression of HOTAIR is involved in cervical cancer progression and could be a potential target for diagnosis and gene therapy.

Ex Output:
yes


Ex Input:
Question: Does preinjury beta blocker usage affect the heart rate response to initial trauma resuscitation?
Answer: Preinjury beta blockade is associated with a slower presenting heart rate, more bradycardia, less tachycardia, but no difference in mortality or ability to achieve a normal heart rate with resuscitation.

Ex Output:
no


Ex Input:
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.

Ex Output:

no