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 glutamine supplementation prevent bacterial translocation after non-lethal haemorrhage in rats?
Answer: Glutamine supplementation before haemorrhage did not reduce bacterial translocation to mesenteric lymph nodes in this rat model.
Example Output: no

Example Input: Question: Does the presence of the adult respiratory distress syndrome worsen mortality or discharge disability in blunt trauma patients with severe traumatic brain injury?
Answer: The presence of ARDS was not associated with higher mortality or worse discharge disability. It was, however, associated with higher hospital morbidity, longer ICU and hospital length of stay.
Example Output: no

Example Input: Question: Do hFE mutations modulate the effect of iron on serum hepcidin-25 in chronic hemodialysis patients?
Answer: Serum hepcidin-25 is increased in hemodialysis patients, regulated by iron stores and inflammation, and relatively reduced in subjects carrying frequent HFE mutations. Hepcidin-25 may contribute to the pathogenesis of anemia by decreasing iron availability.
Example Output:
yes