<http://webisa.webdatacommons.org/prov/506891235>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/151005523> .
<http://webisa.webdatacommons.org/151005523>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<phys.org> .
<http://webisa.webdatacommons.org/151005523>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/151005523>	<http://www.w3.org/ns/prov#value>	"It cited unnamed U.S. officials as saying that social networking is an invaluable tool for overthrowing foreign governments." .