Assertion: opera | /r/HasProperty | sung in english
Facets:
value: for the first seventeen seasons
type: TEMPORAL
Source sentences:
text: Typically four operas, all sung in English, are presented each season, which runs from late May to late June.
text: For the first seventeen seasons, all operas were sung in English; since 1992 they have, with some exceptions, been performed in their original language with projected titles in English.