input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Hidden X suture proves to be a novel suturing technique for:   (A) Alveolar ridge preservation   (B) Apical repositioning flap   (C) Coronal repositioning flap   (D) Papillae repositioning flap
output: ['(A) Alveolar ridge preservation <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Alveolar ridge preservation  (B) Apical repositioning flap  (C) Coronal repositioning flap  (D) Papillae repositioning flap <> possible answers', '  Hidden X suture proves to be a novel suturing technique for: <> context']