URL	Title	Id
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_13_3_003.html	Chapter 1. calc_tutorial_13_3_003	50c995b6b11c0fb06c000000
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_13_3_003_dlap.xml	DLAP questions	50c995b6b11c0fb06c000000