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 bisphenol A increase atherosclerosis in pregnane X receptor-humanized ApoE deficient mice?
Answer: These findings identify a molecular mechanism that could link BPA exposure to increased risk of CVD in exposed individuals. PXR is therefore a relevant target for future risk assessment of BPA and related environmental chemicals in humans.

Ex Output:
yes

Ex Input:
Question: Does triptolide inhibit TGF-1-induced cell proliferation in rat airway smooth muscle cells by suppressing Smad signaling?
Answer: Triptolide may function as an inhibitor of asthma airway remodeling by suppressing ASMCs proliferation via negative regulation of Smad signaling pathway.

Ex Output:
yes

Ex Input:
Question: Is mucosal antioxidant defense impaired in ulcerative colitis?
Answer: Our results show that in contrast to previous suggestions, mucosal antioxidant defense is not impaired in ulcerative colitis.

Ex Output:
no