URL	Title	Id
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_13_1_014.html	Chapter 1. calc_tutorial_13_1_014	50c8bb29b11c0fb767000000
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_13_1_014_dlap.xml	DLAP questions	50c8bb29b11c0fb767000000