Premise: One of Italy's finest, the Galleria dell'Accademia Carrara has an important Mantegna Madonna and Child and interesting works by Lotto (a Venetian master who spent many years living in Bergamo), Bellini, Raphael, and Titian as well as foreign masters.

Hypothesis: The artist Lotto does not have any works in the Galleria dell'Accademia despite spending many years in Bergamo.
Relation: contradiction