Anchor: The national sport, badminton, and is played wherever a net, real or makeshift, can be set up for players to thwack the shuttlecock acroseto each other.
Entailed: Badminton is played using a net and a shuttlecock. 
Contradiction: You must use a real net when playing badminton. 
Contradiction: Nobody listened to him.
Contradiction: a person walks outdoors
Contradiction: Two girls performing on stage, one playing guitar the other singing.
Contradiction: A woman dances at a live concert while holding water.