Anchor: A group of people are wearing bunny ears.
Entailed: Some people are in fancy dresses.
Contradiction: The kids are writing an examination.
Contradiction: A woman and three children are running in a park.
Contradiction: A boy is getting wet.
Contradiction: It would be perfectly fine to assume a visitor will receive the same type of American-style efficiency. 
Contradiction: If we walked in we would be over stepping our bounds.