Anchor: As the weeks went by, the state of Poirot's nerves grew worse and worse. 
Entailed: Poirot got more nervous as the weeks went by.
Contradiction: Poirot's anxiety was fading away as the weeks went by.
Contradiction: grown man flounders about on a porch
Contradiction: man holds gun
Contradiction: There is no alcohol available for sale in this store.
Contradiction: People take advantage of the companies and we have to raise our prices.