{ "course/2012_Fall": { "graceperiod": "2 days 5 hours 59 minutes 59 seconds", "start": "2011-07-17T12:00", "display_name": "Toy Course" }, "chapter/Overview": { "display_name": "Overview" }, "chapter/Ch2": { "display_name": "Chapter 2", "start": "2015-07-17T12:00" }, "videosequence/Toy_Videos": { "display_name": "Toy Videos", "format": "Lecture Sequence" }, "html/toylab": { "display_name": "Toy lab" }, "video/Video_Resources": { "display_name": "Video Resources" }, "video/Welcome": { "display_name": "Welcome" } }