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 time-domain T-wave alternans strongly associated with a history of ventricular fibrillation in patients with Brugada syndrome?
Answer: Elevated time-domain TWA on AECG confirms arrhythmia risk in symptomatic BrS patients without the need for provocative stimuli.
answer:
yes

question:
Question: Is an Ile93Met substitution in the UCH-L1 gene a disease-causing mutation for idiopathic Parkinson 's disease?
Answer: Our study suggested that Ile93Met of UCH-L1 gene did not influence risk of IPD.
answer:
no

question:
Question: Is gene transfer in vitro and in vivo by cationic lipids significantly affected by levels of supercoiling of a reporter plasmid?
Answer: In considering a specification for the amount of supercoiled plasmid in a gene therapy product, it must be noted that the relaxed forms of the plasmid are no less efficient at gene delivery than the supercoiled forms.
answer:
no