Anchor: a man in a gray shirt trims the hair of a man in a maroon shirt
Entailed: There are two men.
Contradiction: The man in a purple shirt is shaving the man in a maroon shirt.
Contradiction: The old building has not been changed into a research library.
Contradiction: People are on a tennis court
Contradiction: Five girls are jumping on a trampoline.
Contradiction: The skateboarder does a trick down the stairs.