<http://webisa.webdatacommons.org/prov/143830615>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/69710943> .
<http://webisa.webdatacommons.org/69710943>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/69710943>	<http://www.w3.org/ns/prov#value>	"Immigration is the largest source of the" .
<http://webisa.webdatacommons.org/69710943>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<columbia.edu> .