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 Q]: Question: Does constitutive secretion of Interleukin-4 dictate CD133+ side population cells to resist drug treatment and cell death?
Answer: Our data suggest that the autocrine secretion of IL-4 is a potential target for the development of novel anticancer drugs to prevent the CSCs-mediated therapy failure and tumorigenesis.
[EX A]: yes

[EX Q]: Question: Does tobacco smoking differently influence cell types of the innate and adaptive immune system-indications from CpG site methylation?
Answer: Studying cell type-specific methylation changes provides helpful information regarding the biological relevance of epigenetic modifications. Here, we could show that smoking differently affects both cells of the innate and adaptive immune systems.
[EX A]: yes

[EX Q]: Question: Do residents ' practices and perceptions about resuscitate orders and pronouncing death : an opportunity for clinical training?
Answer: Although most residents discuss DNR status with patients and families, only a quarter are observed in such discussions by attending physicians and only a third feel comfortable with this aspect of clinical care. Developing a structured residency program curriculum to address resident skills in end-of-life care would benefit residency training.
[EX A]:
no