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.

[Q]: Question: Does prescription consisting of Vitamin C and Baicalin inhibit tumor growth by enhancing the antioxidant capacity in vivo?
Answer: PVB shows better antitumor effect than Vc and baicalin used alone, and it can significantly enhance the immunity and antioxidant capacity of the mice.
[A]: yes


[Q]: Question: Is time point important for effects of syngeneic bone marrow transplantation for type 1 diabetes in mice?
Answer: These results indicated that syn-BMT should be performed, when diabetes is neither too new-onset nor too late-stage. Tregs represent one mechanism for syn-BMT-induced restoration of immune tolerance in STZ-diabetic mice.
[A]: yes


[Q]: Question: Do cyclooxygenase-2 inhibitors down-regulate osteopontin and Nr4A2-new therapeutic targets for colorectal cancers?
Answer: Down-regulation of osteopontin, probably through blockade of NR4A2 and Wnt signaling, is an important component of the antitumor activity of cyclooxygenase-2 inhibitors. These factors might be developed as therapeutic targets for intestinal cancers.
[A]:
yes