Anchor: course you could tell always tell which were the the natives natives
Entailed: You can tell which ones are native.
Contradiction: There is no way to discern the natives from the others.
Contradiction: Two children fight.
Contradiction: His actions are Marxist and Leninist in nature, but he might say something quite different.
Contradiction: The woman is taking a nap at the park.
Contradiction: A group of people is seated behind a family in an arena