Anchor: A crowd of people are listening to the band playing music.
Entailed: A band is playing music while a crowd listens.
Contradiction: A group has gathered to see a swim meet.
Contradiction: He asked the person to stand.
Contradiction: A softball shortstop tries to tag a player sliding into home
Contradiction: A woman is dancing with another woman
Contradiction: Stone is the most honest material to make tools out of.