Anchor: Ten people sit on a deck and look at the water.
Entailed: A group of people outdoors looking at the water.
Contradiction: Two girls eating their lunch at the waterside.
Contradiction: Three children hold a snake and tease the adults who looked on in horror.
Contradiction: They don't do organized things; instead, they just leap at any chance they see.
Contradiction: The same pulse. 
Contradiction: There is a girl outside.