URL	Title	Id
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_lunar_eclipses.html	Chapter 1. Lunar Eclipses	5132002ab11c0fec79000000
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_lunar_eclipses_dlap.xml	DLAP questions	5132002ab11c0fec79000000