Anchor: The janitor is vacuuming the floor to make it ready for the day.
Entailed: The janitor is working.
Contradiction: The janitor leaves everything alone.
Contradiction: A lone person is riding her skateboard down an empty street.
Contradiction: June 1942 was the date when the Battle of Midway occurred.
Contradiction: There are no people to be seen
Contradiction: Some bikers are riding in the rain.