Anchor: Poirot had been asked by John to remain to lunch, and was already seated at the table. 
Entailed: Poirot was sitting at the table because John had asked him to lunch.
Contradiction: Poirot had left the diner before John could say anything.
Contradiction: That is lame.
Contradiction: A man is in a classroom
Contradiction: a naked girl laws on a bycicle
Contradiction: The second set of rules target Postal Service proposals to begin new services that would add to mail rates.