input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Fibres of periodontal ligament embedded in the bone are   (A) Sharpey's fibres   (B) Tomes fibres   (C) Elastic fibres   (D) Ray's fibres
output: ["(A) Sharpey's fibres <> answer", 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', "(A) Sharpey's fibres  (B) Tomes fibres  (C) Elastic fibres  (D) Ray's fibres <> possible answers", '  Fibres of periodontal ligament embedded in the bone are <> context']