Anchor: There are many tennis balls on a stand behind the blonde tennis player.
Entailed: The tennis player is blonde.
Contradiction: There is a black haired tennis player who ran out of tennis balls.
Contradiction: the tennis player is using soccer balls
Contradiction: A brunette badminton player is choosing her racket.
Contradiction: The tennis player is in a rocket ship flying to the moon.
Contradiction: The tennis player is standing behind the tennis balls.