Anchor: One of the chambers deep in the mine was so large that it could hold the entire population.
Entailed: The entire population could fit in one of the mine's chambers.
Contradiction: None of the chambers in the mines were big enough to fit people.
Contradiction: The roller coaster is empty.
Contradiction: A dog runs with a ball in an open space.
Contradiction: Tommy was overjoyed.
Contradiction: There are two people fencing.