About: http://webisa.webdatacommons.org/149155981

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	On the one hand, there is the fact that the sort of middle-class-and-higher portion of the population able to afford opera or symphonic performance was certainly smaller in real numbers, and probably smaller in percentage.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com