URL	Title	Id
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_the solar_atmosphere.html	Chapter 1. The Solar Atmosphere	513dc337b11c0ffb68000000
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_the solar_atmosphere_dlap.xml	DLAP questions	513dc337b11c0ffb68000000