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: Consider Input: Question: Does in vivo gene transfer of endothelial nitric oxide synthase to carotid arteries from hypercholesterolemic rabbits enhance endothelium-dependent relaxations?
Answer: Adenovirus-mediated gene transfer of eNOS to carotid arteries of cholesterol-fed animals improves endothelium-dependent relaxation when an optimal viral titer is administered.

Output: yes


Input: Consider Input: Question: Does vagus nerve stimulation have antidepressant effects in the kainic acid model for temporal lobe epilepsy?
Answer: The KA rats displayed anhedonia which was significantly decreased by VNS, indicating that this neuromodulatory treatment could likewise diminish depressive symptoms in patients suffering from temporal lobe epilepsy and comorbid depression.

Output: yes


Input: Consider Input: Question: Is l-NMMA ( a nitric oxide synthase inhibitor ) effective in the treatment of cardiogenic shock?
Answer: L-NMMA administration in patients with cardiogenic shock is safe and has favorable clinical and hemodynamic effects.


Output: yes