input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Incorporation of peripheral seal in an impression is necessary to obtain;   (A) Stability   (B) Functionally moulded periphery   (C) Harmonious occlusion   (D) Posterior palatal seal
output: ['(B) Functionally moulded periphery <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Stability  (B) Functionally moulded periphery  (C) Harmonious occlusion  (D) Posterior palatal seal <> possible answers', '  Incorporation of peripheral seal in an impression is necessary to obtain; <> context']