input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Enamel lamellae   (A) Elevation on outer surface of enamel   (B) Dentinal tubule in enamel   (C) Uniform arrangement of enamel rods   (D) Enamel projection in dentin
output: ['(D) Enamel projection in dentin <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Elevation on outer surface of enamel  (B) Dentinal tubule in enamel  (C) Uniform arrangement of enamel rods  (D) Enamel projection in dentin <> possible answers', '  Enamel lamellae <> context']