Assertion: opera | /r/HasProperty | performed in their original language
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Operas are performed in their original language, with English subtitles for Russian operas and Russian subtitles for foreign operas.
text: Operas by non-Russian composers began to be performed in their original languages, which helped the Opera Company to incorporate world trends.
text: Often, operas are presented in their original languages, which may be different from the first language of the audience.