Anchor: A group of police officers are congregating near their mobile command post.
Entailed: a group of people are congregating.
Contradiction: A group of fireman are in a fire truck.
Contradiction: Xerox does not require any of their suppliers to produce samples of their parts.
Contradiction: I took the kids to see Look Who's Talking Too, which was terrible.
Contradiction: A crowd of people outside during the day.
Contradiction: The man is outside