Anchor: This knowledge, coupled with vast experience in manufacturing trucks, ensured the stability of the 797-truck design before initial manufacturing started.
Entailed: The stability of the 797 truck design was assured before manufacturing began.
Contradiction: The stability of the 797 truck design was far from a sure thing before manufacturing began.
Contradiction: People are sitting at the buffet table
Contradiction: She had light skin.
Contradiction: There are no black men.
Contradiction: I was a fool for nothing thinking of this possibility earlier.