About: http://webisa.webdatacommons.org/367299489

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	Languages/ProjectionsOperas are usually sung in the language in which they were composed, which means that opera singers must be able to sing in Italian, German, French, Czech, English and other languages.
http://www.w3.org/ns/prov#wasQuotedFrom	laopera.org