Anchor: Teams assemble on a soccer field wearing blue, red, and yellow uniforms.
Entailed: There are people on a soccer field.
Contradiction: There is only one team on a soccer field.
Contradiction: A man is walking to the store.
Contradiction: Someone is skiing downhill.
Contradiction: The Democratic party has never made a mistake. 
Contradiction: Harvard's communications director talked to the Boston Globe and to the Mayor.