URL	Title	Id
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_jupiters_magnetosphere.html	Chapter 1. Jupiter's Magnetosphere	513aabe7b11c0f495b000002
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_jupiters_magnetosphere_dlap.xml	DLAP questions	513aabe7b11c0f495b000002