input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** To prevent ventilator associated pneumonia, the most effective and evidence based results are seen with which of the following for critically ill patients:   (A) Betadine mouthwash   (B) Oral hygiene procedures plus chlorhexidine   (C) Manual brushing   (D) Powered brushing
output: ['(B) Oral hygiene procedures plus chlorhexidine <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Betadine mouthwash  (B) Oral hygiene procedures plus chlorhexidine  (C) Manual brushing  (D) Powered brushing <> possible answers', '  To prevent ventilator associated pneumonia, the most effective and evidence based results are seen with which of the following for critically ill patients: <> context']