Anchor: After negotiating the bids, a contract for implementing the SO2 control technology is awarded.
Entailed: The bids were negotiated for the contract.
Contradiction: The contract is awarded before negotiations.
Contradiction: A headline at the top of a web page isn't the same as a three-page color spread.
Contradiction: Red said to be quiet.
Contradiction: Among the redwood grove are the stones that built the pyramids.
Contradiction: Two similarly colored dogs are trying to bite each others faces.