About: http://webisa.webdatacommons.org/81525745

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Clark looked at surnames and accounted for income, education and other factors to establish a long-term conclusion.
http://www.w3.org/ns/prov#wasQuotedFrom	citybeat.com