Assertion: badminton | /r/HasProperty | introduced into the olympic games
Facets:
value: as a demonstration sport
type: MANNER
value: in 1972
type: TEMPORAL
value: becoming in 1988
type: TEMPORAL
Source sentences:
text: Badminton was introduced into the Olympic Games in 1972 as a demonstration sport and in 1988 as an exhibition sport, becoming a full-fledged medal sport in 1992.