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.

Q: Question: Is branch segment occlusion with acute myocardial infarction a risk for left ventricular free wall rupture?
Answer: The incidence of LVFWR was higher in group B and branch segment occlusion was identified as an independent predictor of LVFWR.

A: yes
****
Q: 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.

A: yes
****
Q: Question: Is persistent insomnia associated with mortality risk?
Answer: In a population-based cohort, persistent, and not intermittent, insomnia was associated with increased risk for all-cause and cardiopulmonary mortality and was associated with a steeper increase in inflammation.

A:
yes
****