Anchor: The horse went over the edge.
Entailed: The horse did not stop before stepping over the edge.
Contradiction: The horse righted its footing just before falling over the edge. 
Contradiction: I've never been to Detroit.
Contradiction: Okay, Rennie! the captain shouted.
Contradiction: The men are playing football.
Contradiction: Crowds of people are gathered on both sides of a river.