Anchor: After some reflecting, I decided to take John into my confidence, and leave him to make the matter public or not, as he thought fit. 
Entailed: I felt John should be told and if he chose to tell the others, so be it. 
Contradiction: After some thought, I decided it would be best to keep my thoughts to myself for at least a while longer.
Contradiction: The policeman is looking over the neighborhood.
Contradiction: That's correct.
Contradiction: Poirot was stumped, having had no new ideas in recent days.
Contradiction: The boy and girl are at the park.