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: Are complaints of sleep disturbances associated with cardiovascular disease : results from the Gutenberg Health Study?
Answer: Given the high prevalence of complaints of sleep disturbances and their strong impact on health status, increased efforts should be undertaken for their identification and treatment.
[EX A]: yes

[EX Q]: Question: Does myeloid knockout of HIF-1 α markedly affect hemorrhage/resuscitation-induced inflammation and hepatic injury?
Answer: Here, deleting HIF-1 α in myeloid cells and thereby in Kupffer cells was not protective after H/R. This data indicates that other factors, such as NF- κB, due to its upregulated phosphorylation in WT and KO mice, contrary to HIF-1 α, are rather key modulators of inflammation after H/R in our model.
[EX A]: no

[EX Q]: Question: Does removal of the superficial zone of bovine articular cartilage increase its frictional coefficient?
Answer: The topmost ( approximately 100 microm) superficial zone of articular cartilage does not have special properties which enhances its frictional response.
[EX A]:
no