Anchor: Five men are working on a construction site.
Entailed: Men are working at a construction site.
Contradiction: A construction crew sitting at the sandwich shop during their break.
Contradiction: Each study had three labs participating. 
Contradiction: He was expecting there to be a backlash.
Contradiction: A bald man in a grassy area is not holding a hose
Contradiction: Patrons at a bar down a cocktail.