Anchor: People gathered outside of a building at night.
Entailed: Last night, people were outside the building.
Contradiction: Last night, kids were playing at a concert in the park.
Contradiction: I have endless sympathy for the people in our town who have not limited their family size.
Contradiction: Bob claimed that the rocks would be red.
Contradiction: A bunch of wrestlers get ready to fight.
Contradiction: A band is playing music.