input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** In case of addition silicones what should be done for better cast   (A) Apply ketone over tray   (B) Apply chloroform over tray   (C) Add flavouring agent to prevent bad odour   (D) Delay pouring of cast
output: ['(D) Delay pouring of cast <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Apply ketone over tray  (B) Apply chloroform over tray  (C) Add flavouring agent to prevent bad odour  (D) Delay pouring of cast <> possible answers', '  In case of addition silicones what should be done for better cast <> context']