input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** CHX mouthwash daily use till 2 week for streptococcus mutanus is effective for:   (A) 14-18 weeks   (B) 12-14 weeks   (C) 12-16 weeks   (D) 12-26 weeks
output: ['(D) 12-26 weeks <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 14-18 weeks  (B) 12-14 weeks  (C) 12-16 weeks  (D) 12-26 weeks <> possible answers', '  CHX mouthwash daily use till 2 week for streptococcus mutanus is effective for: <> context']