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: Is central venous saturation an alternative to mixed venous saturation during cardiopulmonary bypass in coronary artery surgery patients?
Answer: Although mean biases between the measurements were low, limits of agreement were too large to provide a clinically acceptable estimation of SvO(2) by ScvO(2) in these conditions. Variations in regional oxygen consumption seem to be the main factor worsening the relationship.
answer:
no


question:
Question: Do alberta rodeo athletes develop the chronic whiplash syndrome?
Answer: Rodeo athletes appear to be in at least as many motor vehicle collisions as rodeo spectators, and 33% suffered the acute whiplash syndrome. Rodeo athletes appear, however, to be more resistant than spectators to developing prolonged pain and disability.
answer:
no


question:
Question: Does lipopolysaccharide preconditioning induce neuroprotection against early brain injury after experimental subarachnoid hemorrhage?
Answer: LPS preconditioning could modulate MMP-9 and therefore induce neuroprotection against EBI after experimental SAH.
answer:

yes