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: Is pre-surgical cortical activation to food pictures associated with weight loss following bariatric surgery?
Answer: We found that neural activity in previously established regions associated with cognitive and behavioral self-regulation predicts weight loss following bariatric surgery. These preliminary findings highlight the role of neural circuitry in the success and maintenance of weight loss and suggest a possible future use of fMRI in screening LAGB surgery candidates.
Example Output: yes

Example Input: 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.
Example Output: yes

Example Input: Question: Is the palmar fat pad a reliable intraoperative landmark during carpal tunnel release?
Answer: The palmar fat pad is a reliable anatomic landmark during carpal tunnel release. When dividing the TCL from proximal to distal, visualization of the proximal aspect of the fat pad indicates that the distal edge of the TCL is within approximately 2 mm and indicates that distal dissection beyond this extent is unnecessary.
Example Output:
yes