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.
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Question: Question: Does cognitive impairment in patients with multiple sclerosis predict worse caregiver 's health-related quality of life?
Answer: MS patients' caregivers' HRQoL is significantly influenced by information processing speed impairment of MS patients.

Answer: yes


Question: Question: Does milrinone attenuate serotonin-induced pulmonary hypertension and bronchoconstriction in dogs?
Answer: We studied the effects of milrinone on serotonin-induced pulmonary hypertension and bronchoconstriction in dogs. Milrinone produces pulmonary vasodilation and bronchodilation, whose effects may not be caused by beta-adrenoceptor activation. In addition, this drug may be more sensitive to phosphodiesterase III in the airway smooth muscle than that in pulmonary vascular smooth muscle.

Answer: yes


Question: Question: Does worsening left ventricular performance on serial exercise radionuclide angiography identify high-risk patients?
Answer: Worsening exercise performance on serial exercise radionuclide angiography does not identify patients at increased risk of future cardiac events.

Answer:
no