URL	Title	Id
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_our_solar_system_terrestrial_or_jovian.html	Chapter 1. Our Solar System: Terrestrial or Jovian?	517a75b0b11c0fc428000000
http://digfir-published.macmillanusa.com/astro_interactive_exercise/ie_our_solar_system_terrestrial_or_jovian_dlap.xml	DLAP questions	517a75b0b11c0fc428000000