Anchor: A boy on a bicycle rides the ledge of water fountain while another boy is in the fountain.
Entailed: boy in fountain
Contradiction: cow in a truck
Contradiction: I didn't attend any GCA conferences 
Contradiction: Saving $30,000 per year for 12,000 offices would free up one-third of a billion dollars.
Contradiction: They howl pretty much all the time.
Contradiction: A man and woman lead some cattle on a road.