id	domain	url
concept-2181	nsarchive.gwu.edu	http://nsarchive.gwu.edu/nsaebb/nsaebb78/docs.htm
concept-2181	gdc.galegroup.com.ezp1.villanova.edu	http://gdc.galegroup.com.ezp1.villanova.edu/gdc/artemis?p=usdd&u=vill_main
concept-2181	gdc.galegroup.com.ezp1.villanova.edu	http://gdc.galegroup.com.ezp1.villanova.edu/gdc/artemis?p=usdd&u=vill_main
concept-2181	nsarchive.gwu.edu	http://nsarchive.gwu.edu/nsaebb/nsaebb78/docs.htm