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 Q]: Question: Is previous laparotomy a contraindication to laparoscopy-assisted gastrectomy for early gastric cancer?
Answer: There was no difference in outcome following LAG between the PSURG and NSURG groups in the present study. The PSURG patient is not contraindicated for LAG assuming careful attention is given for all operative procedures, including port insertion and dissection of intra-abdominal adhesions.
[EX A]: no

[EX Q]: 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.
[EX A]: yes

[EX Q]: Question: Is linagliptin fixed-dose combination with metformin bioequivalent to co-administration of linagliptin and metformin as individual tablets?
Answer: FDC tablets of linagliptin and metformin are bioequivalent to individual tablets of respective dose strengths taken together. Both treatments were well tolerated.
[EX A]:
yes