instruction:
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.
question:
Question: Do norepinephrine and ephedrine counteract the increase in cutaneous microcirculation induced by spinal anaesthesia?
Answer: Improved skin perfusion induced by spinal anaesthesia was not counteracted by the use of norepinephrine or ephedrine.
answer:
no


question:
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.
answer:
no


question:
Question: Is klassevirus 1 , a previously undescribed member of the family Picornaviridae , globally widespread?
Answer: Klassevirus 1 is a previously undescribed picornavirus that is globally widespread and present on at least three continents. Further investigations to determine whether klassevirus 1 is a human pathogen are needed.
answer:

yes