<http://webisa.webdatacommons.org/prov/14693674>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/120022820> .
<http://webisa.webdatacommons.org/120022820>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<plos.org> .
<http://webisa.webdatacommons.org/120022820>	<http://www.w3.org/ns/prov#value>	"Ethnic groups were mainly defined as Caucasian, Asian, African and African-American." .
<http://webisa.webdatacommons.org/120022820>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .