URL	Title	Id
http://digfir-published.macmillanusa.com/gls_animated_graph/gls_4_18.html	Chapter 1. eFigure 4.18	5176f411b11c0fbb07000008
http://digfir-published.macmillanusa.com/gls_animated_graph/gls_4_18_dlap.xml	DLAP questions	5176f411b11c0fbb07000008