Anchor: A man walks from stone to stone in a river.
Entailed: There is a man near river.
Contradiction: The man is reading books.
Contradiction: Teams have to be in the same city to be together in a virtual environment.
Contradiction: People standing on the sidewalk.
Contradiction: Some kids play a game of frisbee at a barbeque.
Contradiction: Ground beef is not the most growing source of e coli.