<http://webisa.webdatacommons.org/prov/296097582> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/193507650> . <http://webisa.webdatacommons.org/193507650> <http://www.w3.org/ns/prov#wasQuotedFrom> <pressherald.com> . <http://webisa.webdatacommons.org/193507650> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/193507650> <http://www.w3.org/ns/prov#value> "That???s a problem that faces an estimated 50 million Americans, including 16.7 million children." .