Anchor: Well, maybe the sigh , but not the fact of history, as Walcott knows quite well.
Entailed: Walcott knows that this is not a fact of history.
Contradiction: Everyone knows that this in actually a fact of history.
Contradiction: This was expected.
Contradiction: A group of people are gathered together.
Contradiction: My stepson entered the army.
Contradiction: Size has good and bad sides.