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: Do changes in basophil activation during grass-pollen sublingual immunotherapy correlate with clinical efficacy?
Answer: Allergen reactivity of peripheral blood basophils is not a biomarker for adverse events or early onset of clinical responses to SLIT.

Ex Output:
no

Ex Input:
Question: Does [ Edaravone protect hearing from acute acoustic trauma in guinea pigs ]?
Answer: The level of ROS in cochlea were decreased significantly after intratympanic edaravone injection. The mechanism may due to its effective clearance of the ROS in cochlea.

Ex Output:
yes

Ex Input:
Question: Is admission hyperglycemia associated with failed reperfusion following fibrinolytic therapy in patients with STEMI : results of a retrospective study?
Answer: In patients with STEMI who undergo FT, admission hyperglycemia is an independent predictor of the failure of fibrinolysis.

Ex Output:
yes