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: Does health-related quality of life differ between short-term , long-term and very long-term cancer survivors in the Swedish general population?
Answer: Although HRQL was similar between short-term, long-term and very long-term survivors, when compared with the background population, findings suggest that some functional impairments and symptoms are present even at 5-10 YSD.

Output: no

Input: Consider Input: Question: Is allogeneic red blood cell transfusion an independent risk factor for the development of postoperative bacterial infection?
Answer: These data support the hypothesis that allogeneic red cell transfusion is an independent risk factor for the development of postoperative bacterial infection in patients undergoing colorectal surgery. This association provides further reason to minimise exposure to allogeneic transfusions in the perioperative setting.

Output: yes

Input: Consider Input: Question: Do nomograms incorporating serum C-reactive protein effectively predict mortality before and after surgical treatment of renal cell carcinoma?
Answer: We have generated nomograms incorporating serum C-reactive protein levels that effectively predict overall mortality and renal cell carcinoma specific mortality. Our findings warrant external validation.
Output: yes