Anchor: The post-1960s Democratic Party has come close to making the same mistake.
Entailed: The Democratic party made a mistake once.
Contradiction: The Democratic party has never made a mistake. 
Contradiction: Contractors are eating a sandwich.
Contradiction: It is being watched by several men.
Contradiction: Chopped body parts are thrown into the furnace.
Contradiction: Individuals can get themselves involved with an organization.