Anchor: Poirot had conferred with Japp in a low tone on the way up, and it was the latter functionary who requested that the household, with the exception of the servants, should be assembled together in the drawing-room. 
Entailed: Japp asked that the household be assembled in the joining room.
Contradiction: Poirot and Japp did not speak on the way up.
Contradiction: Central to the Review Process is not the right of designated stakeholders 
Contradiction: The tourists are posing outside.
Contradiction: The boy sitting in the airplane.
Contradiction: I use them to float if it is near the end of the month.