id	domain	url
elements-8991	www.bc.edu	www.bc.edu/elements
elements-8991	www.bbc.co.uk	http://www.bbc.co.uk/ww2peopleswar/stories/84/a1963884.shtml
elements-8991	www.bbc.co.uk	http://www.bbc.co.uk/ww2peopleswar/stories/84
elements-8991	www.nytimes.com	http://www.nytimes.com/1998/01/12