URL	Title	Id
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_5_2_008.html	Chapter 1. calc_tutorial_5_2_008	50c6368fb11c0f195a000000
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_5_2_008_dlap.xml	DLAP questions	50c6368fb11c0f195a000000