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.

Input: Consider Input: Question: Do the biceps tendon as a measure of rotational deformity in residual brachial plexus birth palsy?
Answer: The biceps angle is a measure of rotational deformity in patients with residual brachial plexus birth palsy, and correlates better with external rotation than either the glenoid version or the PHHA. The biceps angle may be a useful measure of rotational glenohumeral deformity before and after surgery.

Output: yes


Input: Consider Input: Question: Are respiratory disorders more common in farmers . Results from a study on Icelandic animal farmers?
Answer: The prevalence of respiratory disorders and symptoms among Icelandic farmers is currently similar to non-farmers. This may suggest that modernization of the agricultural environment has had a positive effect on workers' health.

Output: no


Input: Consider Input: Question: Do dPP4 inhibitors increase differentially the expression of surfactant proteins in Fischer 344 rats?
Answer: DPP4 inhibition influence differently the expression of surfactant proteins in healthy rats and may be suitable to elevate surfactant synthesis in different diseases accompanied with surfactant deficiencies.


Output: yes