Assertion: gregorian chant | /r/ObjectUse | used in the roman catholic church
Facets:
Source sentences:
text: Gregorian chant is an important form of plainchant, used mainly in the Roman Catholic Church.
text: Gregorian chant is an important form of plainchant, used mainly in the Roman Catholic Church.
text: Gregorian chant is an important form of plainchant, used mainly in the Roman Catholic Church.