Anchor: People discriminate even when it's against their own self-interest.
Entailed: People will always have prejudices no matter what. 
Contradiction: There is never a time when people ever discriminate others. 
Contradiction: The man has on roller skates as his dog pulls him.
Contradiction: Construction workers wear safety equipment.
Contradiction: The school was allowed to give any child oxygen.
Contradiction: There was once a lot of traffic in this spot.