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 a high body mass index in esophageal cancer patients associated with adverse outcomes following esophagectomy?
Answer: A high BMI is not associated with increased overall morbidity following esophagectomy; moreover, it is associated with decreased incidence of chylothorax. The better overall survival in patients with high BMI compared with those with low BMI might be due to a relatively low pathological stage. A high BMI should therefore not be a relative contraindication for esophagectomy.

Ex Output:
no


Ex Input:
Question: Is arthrogenic muscle inhibition present in the limb contralateral to a simulated knee joint effusion?
Answer: Knee joint effusion results in ipsilateral but not contralateral impairment of quadriceps function. Rehabilitation protocols after knee joint injury should focus on ipsilateral neuromuscular and mechanical alterations that occur as the result of joint damage.

Ex Output:
no


Ex Input:
Question: Is a single-center review of the death notification form : discontinuing dialysis before death a surrogate for withdrawal from dialysis?
Answer: There is physician variability in interpretation of discontinuation of dialysis before death. Thirty percent of patients who discontinued dialysis therapy before death died 3 or fewer days from their last dialysis treatment, making uremia an unlikely cause of death, but suggesting that nephrologists wanted to note that a decision not to continue dialysis therapy had been made before the patient died. Discontinuing dialysis therapy as noted on the death notification form is not a surrogate for withdrawal from dialysis as a cause of death. Providing criteria for reporting discontinuing dialysis therapy would allow us to clarify the incidence of withdrawal from dialysis as a cause of death.

Ex Output:

no