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 discovery-based protein expression profiling identify distinct subgroups and pathways in leiomyosarcomas?
Answer: These results suggest that UPS tumors share a similar lineage as leiomyosarcomas and are likely to originate from different stages of differentiation from mesenchymal stem cells to smooth muscle cells.
Example Output: yes

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: Are the cardioprotective effects of the angiotensin-converting enzyme inhibitor perindopril in patients with stable coronary artery disease modified by mild to moderate renal insufficiency : insights from the EUROPA trial?
Answer: The treatment benefit of perindopril is consistent and not modified by mild to moderate renal insufficiency.
Example Output:
no