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.

Input: Consider Input: Question: Do [ Effectiveness of a suture bridge technique for repair of quadriceps tendon rupture in uraemic patients ]?
Answer: For fewer traumas and early functional exercise after operation, the suture bridge technique benefits functional restoration of knee joint in uraemic patients. Operation chance and age seem to be important factors to the results. Early operation should be considered when quadriceps tendon ruptured.

Output: yes


Input: Consider 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.

Output: no


Input: Consider Input: Question: Are the oncologic results of laparoscopic radical cystectomy ( yet ) equivalent to open cystectomy?
Answer: When stage distribution (organ-confined versus nonorgan-confined) and survival rates of laparoscopic and open RCX are cross-checked against surrogate markers (LN+, margin+, distant failure, local recurrence rate, etc.), it becomes easily obvious that the laparoscopic RCX and open cohorts are not identical. To explain the observed discrepancy, there must be a strong selection bias. Data on overall, disease-specific and recurrence-free survival on laparoscopic RCX are still immature compared with the standard of care that must remain in open RCX. To prove the noninferiority of laparoscopic compared with open surgery regarding outcome, multicenter prospective trials are urgently needed. Until then laparoscopic RCX must be considered experimental surgery.


Output: no