About: http://webisa.webdatacommons.org/402376314

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 the 1950s, Maria Callas revolutionized bel canto singing, particularly with roles such as Lucia, and Elvira from I puritani.
http://www.w3.org/ns/prov#wasQuotedFrom	classical.net