{
    "version": 1.0,
    "title": "Presidents of the United States from 1789 to 1853 (By Yuen, 1st Period)",
    "type": "rich",
    "html": "<iframe width=\"500\" height=\"500\" style=\"border:3px solid black; margin:auto; display:block\" frameborder=\"0\" src=\"https://crosswordlabs.com/embed/presidents-of-the-united-states-from-1789-to-1853\"></iframe>",
    "width": 500,
    "height": 500,
    "thumbnail_url": "https://crosswordlabs.com/image/10304928.svg",
    "thumbnail_width": 100,
    "thumbnail_height": 100
}