id	domain	url
elements-9023	hubblesite.org	http://hubblesite.org/gallery/album/galaxy/spiral
elements-9023	www.firstthings.com	http://www.firstthings.com/article.php3?id_article=6254
elements-9023	hubblesite.org	http://hubblesite.org/gallery/album/galaxy/spiral
elements-9023	www.firstthings.com	http://www.firstthings.com/article.php3?id_article=6254
elements-9023	cogweb.ucla.edu	http://cogweb.ucla.edu