URL	Title	Id
http://digfir-published.macmillanusa.com/gls_animated_graph/gls_2_15.html	Chapter 1. eFigure 2.15	515f2b34b11c0ff613000002
http://digfir-published.macmillanusa.com/gls_animated_graph/gls_2_15_dlap.xml	DLAP questions	515f2b34b11c0ff613000002