instruction:
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.
question:
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.
answer:
yes


question:
Question: Is three-dimensional speckle strain echocardiography more accurate and efficient than 2D strain in the evaluation of left ventricular function?
Answer: Three-dimensional STE is feasible and reproducible in the estimation of LV function, requires substantially less time than 2DSTE and is a more feasible technique for LV function assessment in clinical practice.
answer:
yes


question:
Question: Does the pandemic influenza A ( H1N1 ) 2009 vaccine increase the mortality rate of idiopathic interstitial pneumonia : a matched case-control study?
Answer: In our study, we detected no evidence that the influenza A (H1N1) 2009 vaccine increased the mortality rate of patients with idiopathic interstitial pneumonia. The results, however, are limited by the small sample size and low statistical power. A larger-scale study is required.
answer:

no