{"version":"1.0","type":"video","provider_name":"Puzzicle","provider_url":"https://puzzicle.org","title":"Finding limits by direct substitution","width":800,"height":560,"thumbnail_url":"https://puzzicle.org/thumbs/xc6cdef6f.jpg","thumbnail_width":320,"thumbnail_height":180,"html":"<iframe src=\"https://puzzicle.org/embed/math/ap-calculus-ab/v/limit-by-substitution\" width=\"800\" height=\"560\" style=\"border:0;max-width:100%\" allow=\"fullscreen; autoplay\" title=\"Finding limits by direct substitution\"></iframe>"}