Anchor: No one actually saw him pass anything to her, but he might have done so.
Entailed: He might have passed something to her, but nobody saw it.
Contradiction: People saw him give her something.
Contradiction: A little blonde boy ignores a pigeon.
Contradiction: A human reaching.
Contradiction: There are black and white keys on the guitar.
Contradiction: A chief executive can be victorious in a fight with Congress.