TASK DEFINITION: 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.
PROBLEM: 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.

SOLUTION: yes

PROBLEM: Question: Does adenosine-activated myocardial ischemia induce delayed preconditioning?
Answer: Adenosine-induced ischemia does not exert a delayed protective effect in respect to cardiac bioelectrical and mechanical functions in patients with ischemic heart disease in the form of stable effort angina.

SOLUTION: no

PROBLEM: Question: Is n-acetyl beta-D-glucosaminidase attached to human sperm membranes through the glycosylphosphatidyl inositol ( GPI ) -anchor?
Answer: The evidence presented strongly suggests that human sperm membrane bound NAGA is not attached via the GPI anchor.

SOLUTION:
no