Anchor: There are many people wearing helmets riding on bikes.
Entailed: many people on bikes
Contradiction: girl eats toffee
Contradiction: Mr. Genz didn't have any announcements about anything. 
Contradiction: The catcher is an important position in the game of baseball.
Contradiction: The man and woman are working together to put up a birdhouse.
Contradiction: Fruit is sweet on the tongue.