input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** 27.	The lateral spread of dental caries is facilitated mostly  by the   (A) Enamel spindles   (B) Dentinoenamel junction   (C) Enamel lamellae   (D) Striae of Retzius
output: ['(B) Dentinoenamel junction <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Enamel spindles  (B) Dentinoenamel junction  (C) Enamel lamellae  (D) Striae of Retzius <> possible answers', '  27.\tThe lateral spread of dental caries is facilitated mostly  by the <> context']