Anchor: A group of people gather on the grass field and throw a pink hoop.
Entailed: A group plays together.
Contradiction: They throw a red hoop.
Contradiction: The man is bald
Contradiction: When he told us that he believed in what we were accomplishing we worked harder. 
Contradiction: A man walks below a bridge on an empty street.
Contradiction: If he wants to talk to Red, he can.