Anchor: The man smiled at her but she did not smile back.
Entailed: A man and woman reacted to one another. 
Contradiction: The man completely ignored the woman. 
Contradiction: A person is swimming in the water.
Contradiction: a dog jumping over wood at the beach
Contradiction: The man is sitting in the livingroom.
Contradiction: Delineating those types is to emphasize that all dimensions should be considered.