input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Vitamin K antagonizes   (A) Corticosteroids   (B) Thrombin formation   (C) Bishydroxy coumarin   (D) Production of clotting factors by liver
output: ['(C) Bishydroxy coumarin <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Corticosteroids  (B) Thrombin formation  (C) Bishydroxy coumarin  (D) Production of clotting factors by liver <> possible answers', '  Vitamin K antagonizes <> context']