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 Input:
Question: Does hypoxia interfere with connective tissue growth factor ( CTGF ) gene expression in human proximal tubular cell lines?
Answer: We provide evidence that hypoxia inhibits CTGF synthesis in human proximal tubular epithelial cells, involving HIF-1alpha. Under hypoxic conditions, induction of CTGF by TGF-beta was repressed. The reduced synthesis of the profibrotic factor CTGF may contribute to a potential protective effect of hypoxic preconditioning in acute renal injury.

Ex Output:
yes


Ex Input:
Question: Do associations of Heart Rate With Inflammatory Markers Are Modulated by Gender and Obesity in Older Adults?
Answer: Faster HR is associated with proinflammatory state in elderly patients; this association seems to be limited to women with higher BMI.

Ex Output:
yes


Ex Input:
Question: Is chronic inflammation in benign prostate tissue associated with high-grade prostate cancer in the placebo arm of the prostate cancer prevention trial?
Answer: Inflammation, most of which was chronic, was common in benign prostate tissue, and was positively associated with prostate cancer, especially high grade. The association did not seem to be due to detection bias.

Ex Output:

yes