Anchor: a man a woman and a child sitting on a couch smiling
Entailed: There are at least three people on a couch.
Contradiction: The couch is infested with maggots.
Contradiction: No one is smiling.
Contradiction: A family visits the zoo.
Contradiction: A mother and child wait tearfully for a father who never comes back home.
Contradiction: The family is sitting in the restaurant eating dinner.