About: http://webisa.webdatacommons.org/97470760

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	Education, according to three levels, (primary, secondary and tertiary) and employment (economically active such as employers and employees vs. inactive such as retired, housewives, students) were used as socioeconomic status indicators.
http://www.w3.org/ns/prov#wasQuotedFrom	mdpi.com