Text: In News Quiz responses and in the wider culture (if there is one), food is used as a metaphor for ideology (bread and roses; let them eat cake) and for  Their attitudes toward eating reveal something, well, distasteful about President Clinton and Calista Flockhart.
Entailment: In response to a News Quiz, food is used as a metaphor for ideology.
Contradiction: Food is not considered a metaphor of any kind.