Take the following as truth: Mr. Hastings, you do not think ”surely it could not have been Lawrence ”Oh, no, that could not be! But I myself was puzzled, and as soon as I was alone with Poirot I asked him what he thought Sir Ernest was driving at. 
Then the following statement: "I was convinced that Poirot knew exactly what Sir Ernest had been implying. " is true, false, or inconclusive?