Anchor: Pardon me, madame, for recalling unpleasant memories, but I have a little idea ”Poirot's "little ideas" were becoming a perfect byword ”"and would like to ask one or two questions."
Entailed: Poirot wanted to ask the lady about an idea he had.
Contradiction: The woman was eager to share her recollections, but Poirot had run out of questions.
Contradiction: Two white dogs are playing inside the living room.
Contradiction: It isn't always obvious. 
Contradiction: Four women are running a marathon.
Contradiction: They are standing.