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 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: Does identification of structural alert for liver and kidney toxicity using repeated dose toxicity data?
Answer: It was not possible to assign an unambiguous mode of action for all the SAs, but a mechanistic explanation is provided for some of them. Such achievements may help in the early identification of liver and renal toxicity of substances.
answer:
yes

question:
Question: Does abatacept treatment exacerbate chronic Mycobacterium tuberculosis infection in mice?
Answer: Abatacept did not impair the ability of mice to control a chronic M tuberculosis infection. In contrast, mice treated with anti-TNF therapy showed increased pathology and bacterial load, with 100% mortality by week 9. The clinical significance of these findings has not yet been determined.
answer:
no