Anchor: Two hockey players almost fall on the ice during a scuffle.
Entailed: The players are on the ice.
Contradiction: The hockey players are playing football.
Contradiction: The act called for the corporation to shut down.
Contradiction: People buy food.
Contradiction: People are driving on the freeway
Contradiction: In fact, the EPA believe that many retrofits will be carried out by 2005 because it is cost effective.