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.
Input: Question: Is use of Diuretics associated with mortality in patients admitted to the emergency department : results from a cross-sectional study?
Answer: Use of diuretics is not associated with mortality in an unselected cohort of patients presenting in an emergency room.
Output:
no