{"type":"rich","version":"1.0","title":"AB=6 ⇒ Blue = 15 / 4 = 3.75","html":"<iframe src=\"https://www.desmos.com/calculator/qczqsnurrt?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}