input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Anterior two third of the tongue is demarcated from the posterior one third by: plexus, 2-long thoracic plexus, 2-long thoracic   (A) Passavant's ridge   (B) Sulcus terminalis   (C) Circurnvallatepapillae   (D) Filifonn papilla
output: ['(B) Sulcus terminalis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', "(A) Passavant's ridge  (B) Sulcus terminalis  (C) Circurnvallatepapillae  (D) Filifonn papilla <> possible answers", '  Anterior two third of the tongue is demarcated from the posterior one third by: plexus, 2-long thoracic plexus, 2-long thoracic <> context']