<http://schema.org/headline>
"New England environmental groups petition EPA to crack down on businesses and institutions whose sites are sources of pollution"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.providencejournal.com/breaking-news/content/20130711-new-england-environmental-groups-petition-epa-to-crack-down-on-businesses-and-institutions-whose-sites-are-sources-of-pollution.ece>