input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A patient shows gingival swelling in lower premolar region. Biopsy was taken and histopathological examination showed endothelium-lined vascular spaces and the extreme proliferation of fibroblasts and budding endothelial cells. What could this lesion be:   (A) Pyogenic granuloma   (B) Fibroma   (C) Aneurysmal bone cyst   (D) Traumatic bone cyst
output: ['(A) Pyogenic granuloma <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Pyogenic granuloma  (B) Fibroma  (C) Aneurysmal bone cyst  (D) Traumatic bone cyst <> possible answers', '  A patient shows gingival swelling in lower premolar region. Biopsy was taken and histopathological examination showed endothelium-lined vascular spaces and the extreme proliferation of fibroblasts and budding endothelial cells. What could this lesion be: <> context']