URL	Title	Id
http://digfir-published.macmillanusa.com/gls_animated_graph/gls_2_9.html	Chapter 1. eFigure 2.9	515f2aeeb11c0ffa13000001
http://digfir-published.macmillanusa.com/gls_animated_graph/gls_2_9_dlap.xml	DLAP questions	515f2aeeb11c0ffa13000001