input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which one of the following antibiotics chelates with calcium ?   (A) Penicillin   (B) Tetracycline   (C) Cephalosporins   (D) Erythromycin
output: ['(B) Tetracycline <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Penicillin  (B) Tetracycline  (C) Cephalosporins  (D) Erythromycin <> possible answers', '  Which one of the following antibiotics chelates with calcium ? <> context']