input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Ptosis may be caused by a lesion of the:   (A) Oculomotor nerve   (B) Superior oblique   (C) Trigeminal nerve   (D) Trochlear nerve
output: ['(A) Oculomotor nerve <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Oculomotor nerve  (B) Superior oblique  (C) Trigeminal nerve  (D) Trochlear nerve <> possible answers', '  Ptosis may be caused by a lesion of the: <> context']