Anchor: Building-space on the water being what it is, Venice has only one real piazza (all others are called campi ), but in comparison, any other contender would have died of shame anyway.
Entailed: There's only one real piazza in Venice because of how rare and expensive building space on the water is.
Contradiction: There are no piazzas left in Venice.
Contradiction: It wasn't funny 
Contradiction: Four men are sitting in the shade beneath a tree
Contradiction: All the professionals engage their judgement to get the correct answer.
Contradiction: A man and a woman pose together.