About: http://webisa.webdatacommons.org/109337131

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	In fact, there is an entire wikipedia article about different ways of modelling the middle class, further showing that your pretending that there is one accepted definition is hilariously misguided.
http://www.w3.org/ns/prov#wasQuotedFrom	atu2.com