input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which is not present in porcelain:   (A) Silica   (B) Feldspar   (C) Calcium carbonate   (D) Amorphous material
output: ['(D) Amorphous material <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Silica  (B) Feldspar  (C) Calcium carbonate  (D) Amorphous material <> possible answers', '  Which is not present in porcelain: <> context']