Detailed Instructions: 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.
Problem:Question: Do postoperative sense of well-being and quality of life in breast cancer patients depend on type of primary surgery?
Answer: Within the first 2 years after primary surgery for breast cancer, we did not find significant differences in sense of well-being or QoL dependent on type of surgery.
Solution:
no