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 biofeedback-guided control of abdominothoracic muscular activity reduce regurgitation episodes in patients with rumination?
Answer: Rumination is produced by an unperceived somatic response to food ingestion that disrupts abdominal accommodation and can be effectively corrected by biofeedback-guided control of abdominothoracic muscular activity.
Example Output: yes

Example Input: Question: Do inpatient admission for febrile seizure and subsequent outcomes differ in children with vaccine-associated versus non-vaccine associated febrile seizures?
Answer: The risk of hospitalization for index FS or select subsequent FS outcomes did not differ between VA or NVA-FS. This suggests that the follow-up care of children with VA-FS does not warrant attention beyond that for NVA-FS.
Example Output: no

Example Input: Question: Does usability testing found problems for novice users of pediatric portals?
Answer: Despite parental involvement and prior heuristic testing, scenario-based testing demonstrated difficulties in navigation, medical language complexity, error recovery, and provider-based organizational schema. While such usability testing can be expensive, the current study demonstrates that it can assist in making healthcare system interfaces for laypersons more user-friendly and potentially more functional for patients and their families.
Example Output:
yes