Anchor: Clinton needed Ickes to help him shore up his liberal base and prevent a Democratic-primary challenge.
Entailed: Clinton needs Ickes' help to get his liberal base shored up.
Contradiction: Clinton does not need Ickes.
Contradiction: The people are in an airplane
Contradiction: What made you decide to place her in a Montessori school?
Contradiction: the canoe is being torn apart at a dump
Contradiction: The bird can fly.