URL	Title	Id
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_2_4_004.html	Chapter 1. Calculus Tutorial 2.4.004	4f76608fb11c0f6f34000000
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_2_4_004_dlap.xml	DLAP questions	4f76608fb11c0f6f34000000