id	domain	url
dad-10769	www.cis.upenn.edu	http://www.cis.upenn.edu/˜nlp/corpora/scinewscorpus
dad-10769	www.cis.upenn.edu	http://www.cis.upenn.edu
dad-10769	www.cis.upenn.edu	http://www.cis.upenn.edu/˜nlp/corpora/scinewscorpus.html