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 Input:
Question: Does neamine inhibit oral cancer progression by suppressing angiogenin-mediated angiogenesis and cancer cell proliferation?
Answer: Neamine effectively inhibits oral cancer progression through inhibition of tumor angiogenesis. Neamine also directly inhibits proliferation of certain types of oral cancer cells. Therefore, neamine has potential as a lead compound for oral cancer therapy.

Ex Output:
yes


Ex Input:
Question: Is lamin A/C deficiency an independent risk factor for cervical cancer?
Answer: Lamin A/C deficiency may serve as an independent risk factor for CIN development and as an indicator for preventive therapy in cervical cancer.

Ex Output:
yes


Ex Input:
Question: Does herpes simplex virus type I require productive infection to induce tissue factor in human umbilical vein endothelial cells?
Answer: HSV-1 induces PCA in HUVEC which is clearly TF-dependent; this response does not require viral replication. These data indicate increased complexity in HSV interactions with vascular endothelium and imply induction of some procoagulant functions by nonproductive infection.

Ex Output:

no