Anchor: John broke the rather awkward silence by saying with a slight effort: "I told you, didn't I, that Mr. Inglethorp has returned?" Poirot bent his head. 
Entailed: John spoke up, which broke the awkward silence.
Contradiction: John remained quiet adding to the awkward silence.
Contradiction: Mrs. Vandemeyer and the Russian got along at all times.
Contradiction: A man is going for a jog.
Contradiction: A barber is sweeping the floor.
Contradiction: A man is traveling on foot.