Anchor: Four people dressed in identical blue clothes are cleaning the grass.
Entailed: Four people cleaning grass.
Contradiction: Two people eating lunch.
Contradiction: The column is complete undecorated, with no artwork at all on its surface. 
Contradiction: A girl on a person's shoulders.
Contradiction: A dog sniffs its food in the house.
Contradiction: Employer accounting for benefits for after retirement not including pensions.