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.

Example Input: Question: Does oligofructose affect the development of type 1 diabetes mellitus induced by dietary proteins in the diabetes-prone BB rat model?
Answer: In the BB rat model, 5% OF in the diet did not have any protective effects against diet-induced T1DM. The present data do not suggest dietary OF as a promising approach for the dietary prevention of T1DM.
Example Output: no

Example Input: Question: Is daily physical activity in patients with chronic obstructive pulmonary disease mainly associated with dynamic hyperinflation?
Answer: Daily physical activity of patients with COPD is mainly associated with dynamic hyperinflation, regardless of severity classification.
Example Output: yes

Example Input: Question: Is postpercutaneous Nephrolithotomy Systemic Inflammatory Response Syndrome Associated With Unplanned Readmission?
Answer: Nearly half of the patients undergoing PCNL met the criteria for SIRS within the first postoperative day. There was no association between SIRS and unplanned readmission in the postoperative PCNL patient. Despite discharge during the first postoperative day, patients with SIRS (without fever or struvite stones) had no increased risk for unplanned return. Our findings suggest that the development of SIRS immediately following PCNL does not preclude safe discharge on the first postoperative day.
Example Output:
no