URL	Title	Id
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_part1_faces_of_the_sun.html	Chapter 1. Faces of the Sun	513dc738b11c0f0b69000002
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_part1_faces_of_the_sun_dlap.xml	DLAP questions	513dc738b11c0f0b69000002