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: 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.
answer:
yes

question:
Question: Does progression rates and sample size estimate for PPMS based on the CLIMB study population?
Answer: Our modern PPMS cohort is demographically similar to previously studied cohorts. PPMS is associated with faster disability accrual than ROMS. Current real-world observations of time to sustained progression will inform design of new clinical trials for PPMS.
answer:
yes

question:
Question: Is tNFalpha promoter polymorphism a risk factor for susceptibility in hepatocellular carcinoma in Korean population?
Answer: Our data imply that TNFalpha G-238A and C-857T, not C-863A, polymorphisms may confer different susceptibilities to the development of HCC with TNFalpha -238A and -857T alleles playing as risk factors.
answer:
yes