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.

Example 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.
Example Output: no

Example Input: Question: Does peroxiredoxin II negatively regulate lipopolysaccharide-induced osteoclast formation and bone loss via JNK and STAT3?
Answer: We suggest that PrxII could be useful in the development of a novel target for inflammatory bone loss.
Example Output: yes

Example Input: Question: Does dietary protein intake affect IgG synthesis in patients with nephrotic syndrome?
Answer: Nephrotic syndrome patients with low plasma IgG levels have increased IgG FSR and ASR which are not affected by reduced dietary protein intake.
Example Output:
no