Anchor: Now at last, I had Poirot to myself, and could relieve my still burning curiosity. 
Entailed: I was extremely curious. 
Contradiction: I had no curiosity at all. 
Contradiction: Two professors work on their research.
Contradiction: The house we bought was one of the cheapest.
Contradiction: He outlived her and, following her death, refused to ever return to the castle.
Contradiction: Its not like they do not know any.