Anchor: Otherwise, Poirot himself might relieve me of it. 
Entailed: Poirot might relieve me of it.
Contradiction: Otherwsie Mike might make me relieve him.
Contradiction: Beatty's requirement for a proletariat is theoretical while Marx's was more theatrical.
Contradiction: Graffiti is scrawled on stone.
Contradiction: A few people show up.
Contradiction: A dog runs on top of the sand.