<http://webisa.webdatacommons.org/141887320>	<http://www.w3.org/ns/prov#value>	"Obama faces various kinds of challenges, even verbal attacks, on a daily basis." .
<http://webisa.webdatacommons.org/prov/339959852>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/141887320> .
<http://webisa.webdatacommons.org/141887320>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<zonaeuropa.com> .
<http://webisa.webdatacommons.org/141887320>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .