Text: The 16th-century Rialto Bridge is one of Venice's architectural icons, designed by ?­Antonio da Ponte for a competition entered by Michelangelo, Palladio, and Sansovino it's still one of the liveliest spots in town.
Entailment: Antonio da Ponte was the designer of a bridge in Venice.
Contradiction: Rialto Bridge was built in Rome in the 1700s.