TASK DEFINITION: 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: Does creatine supplementation affect kidney function in an animal model with pre-existing renal failure?
Answer: Creatine supplementation at a dosage of 2% w/w for 4 weeks does not impair kidney function in animals with pre-existing renal failure or in control animals.

SOLUTION: no

PROBLEM: Question: Is s100A8/A9 involved in host defense against murine urinary tract infection?
Answer: We show that despite high S100A8/A9 expression in bladder and kidney tissue upon UTI, S100A8/A9 does not contribute to an effective host response against E. Coli in the urinary tract system.

SOLUTION: no

PROBLEM: Question: Is breast reconstruction with the deep inferior epigastric perforator flap a reliable alternative in slim patients?
Answer: The DIEP flap provides adequate volume for unilateral breast reconstruction in slim patients, both in immediate and delayed settings. However, in delayed reconstructions slim patients need to be informed about the increased risk of donor-site complications. © 2015 Wiley Periodicals, Inc. Microsurgery 36:552-558, 2016.

SOLUTION:
yes