{"type":"rich","version":"1.0","title":"[ BCD ] / [ ACD ] = 2.77777777778 = 25 / 9","html":"<iframe src=\"https://www.desmos.com/calculator/ku21y5lrfc?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}