{"type":"rich","version":"1.0","title":"R = 5. b = 2.5. a = 0.5","html":"<iframe src=\"https://www.desmos.com/calculator/hgrs58sn5r?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}