URL	Title	Id
http://digfir-published.macmillanusa.com/lodish_animation/a0404_nucleotide_polym.html	Chapter 4. Nucleotide Polymerization by DNA Polymerase	519bca41b11c0f1368000056
http://digfir-published.macmillanusa.com/lodish_animation/a0404_nucleotide_polym_dlap.xml	DLAP questions	519bca41b11c0f1368000056