input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** In submandibular surgery incision is given 2 cm below the border of mandible to preserve which nerve?   (A) Marginal mandibular nerve   (B) Mental Nerve   (C) Long buccal nerve branch of facial   (D) Inferior alveolar nerve
output: ['(A) Marginal mandibular nerve <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Marginal mandibular nerve  (B) Mental Nerve  (C) Long buccal nerve branch of facial  (D) Inferior alveolar nerve <> possible answers', '  In submandibular surgery incision is given 2 cm below the border of mandible to preserve which nerve? <> context']