Assertion: waterloo | /r/HasProperty | sung in english
Facets:
Source sentences:
text: The group also broke from convention by being the first winning entry in a language other than that of their home country; prior to 1973 all Eurovision singers had been required to sing in their country's native tongue, a restriction that was lifted briefly for the contests between 1973 and 1976 (thus allowing "Waterloo" to be sung in English), then reinstated before ultimately being removed again in 1999.