Anchor: A mountain biker riding his bike down a muddy path with mud splashing into the air and the biker is covered in mud.
Entailed: A biker is riding down a muddy path and getting all dirty.
Contradiction: A biker is playing volleyball.
Contradiction: Everyone says Vietnam could have been won.
Contradiction: There's a private beach and tennis courts on the premises.
Contradiction: The kids are throwing snowballs at passing cars.
Contradiction: Boys are playing at a fountain.