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.
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Question: Question: Does the usage of overtube have a favorable effect on endoscopic submucosal dissection?
Answer: We conclude that using an overtube during an upper gastrointestinal ESD decreases the need for suction, favors the speed of dissection, and eases the comfort of the procedure.

Answer: yes


Question: Question: Does dll1 haploinsufficiency in adult mice lead to a complex phenotype affecting metabolic and immunological processes?
Answer: In conclusion, slight alterations in one player of Notch signaling alter the entire organism, emphasizing the fine-tuning character of this pathway in a high number of processes.

Answer: yes


Question: Question: Is high expression of GTPase regulator associated with the focal adhesion kinase ( GRAF ) a favorable prognostic factor in acute myeloid leukemia?
Answer: We provide evidence that high GRAF expression is a favorable prognostic marker in patients with AML.

Answer:
yes