Anchor: These costs are developed primarily to be marginal costs and will be assumed to be marginal costs in this paper.
Entailed: The costs are developed primarily to be marginal costs
Contradiction: The costs are developed primarily not to be marginal costs
Contradiction: You saw the twins being born on Sunday.
Contradiction: It is not right.
Contradiction: The dog is chasing a ghost.
Contradiction: A person touches their face.