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 pseudomonas aeruginosa in CF and non-CF homes found predominantly in drains?
Answer: These findings implicate drains as important potential sources of P. aeruginosa infection. They suggest that maximizing P. aeruginosa control efforts for drains would reduce exposure with minimal extra burden to CF patients and families.
answer:
yes


question:
Question: Is histamine released in acute thermal injury in human skin in vivo : a microdialysis study?
Answer: Histamine is not released in human skin during the acute phase of a thermal injury.
answer:
no


question:
Question: Is leukocyte-poor platelet-rich plasma more effective than the conventional therapy with acetaminophen for the treatment of early knee osteoarthritis?
Answer: Treatment with LP-PRP injections resulted in a significantly better clinical outcome than did treatment with acetaminophen, with sustained lower EVA and WOMAC scores and improvement in quality-of-life (higher SF-12 score). Therapy with LP-PRP may positively modify the inflammatory joint environment by counteracting IL-1β action.
answer:

yes