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 ischemic preconditioning cardioprotective in senescent human myocardium?
Answer: Our data indicate that ischemic preconditioning has no beneficial effect on the postischemic functional recovery of senescent human myocardium.

Ex Output:
no


Ex Input:
Question: Does the Drosophila Chmp1 protein determine wing cell fate through regulation of epidermal growth factor receptor signaling?
Answer: Drosophila Chmp1 negatively regulates DER signaling, likely through its role in MVB formation. Loss of Chmp1 activity in the Drosophila wing induces a cell fate change from intervein to vein that should provide a useful tool for future studies of ESCRT protein activity.

Ex Output:
yes


Ex Input:
Question: Does interfacility transfer of pediatric trauma patients by helicopter predict the need for urgent intervention?
Answer: Most pediatric trauma patients transferred by helicopter did not require interventions. Epidural hematoma, vascular compromise/open fracture, and penetrating neck/trunk injuries predicted prompt interventions (<2 hours) and may have benefited from helicopter transport. There was a disparity between the perceived need for rapid transport and the need for urgent interventions.

Ex Output:

no