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: 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.

Ex Output:
no


Ex Input:
Question: Do quantitative EEG markers relate to Alzheimer 's disease severity in the Prospective Dementia Registry Austria ( PRODEM )?
Answer: Selected QEEG markers show strong associations with AD severity. Both cognitive and resting state should be used for QEEG assessments.

Ex Output:
yes


Ex Input:
Question: Does thrombomodulin enhance complement regulation through strong affinity interactions with factor H and C3b-Factor H complex?
Answer: TM exhibits significant binding affinity for complement protein FH and C3b-FH complex and its soluble form is capable at physiologically relevant concentrations of inhibiting complement activation in serum.

Ex Output:

yes