Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Question: Does tumor-91 integrin-mediated signaling induce breast cancer growth and lymphatic metastasis via the recruitment of cancer-associated fibroblasts?
Answer: Tumor 91 integrin promotes lymphatic metastasis through enhancing invasion. Tumor 91 integrin promotes tumor growth through CAFs. Tumor 91 integrin enhances the recruitment of CAFs into the primary tumor. Tumor cells induce the production of OPN by CAFs in the primary tumor. CAF-derived OPN promotes tumor growth.
Student:
yes