id	domain	url
concept-257	www.nod.org	http://www.nod.org/content.cfm?id=137
concept-257	www.nod.org	http://www.nod.org
concept-257	www.nod.org	http://www.nod.org/content.cfm?id=1486
concept-257	www.cunsus.gov	http://www.cunsus.gov/press-release