input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Vaccine for caries is based on which immunoglobulin   (A) IgG   (B) IgA   (C) IgE   (D) IgM
output: ['(B) IgA <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) IgG  (B) IgA  (C) IgE  (D) IgM <> possible answers', '  Vaccine for caries is based on which immunoglobulin <> context']