premise: The paintings include Jan Van Eyck's 14th-century miniatures for the Book of Hours of the Duc de Berry, Pontormo's St. Michael, and a particularly handsome Portrait of a Man by Sicilian master Antonello da Messina.
hypothesis: The list of paintings included many well-known artists but were unfortunately unable to include Pontormo's St. Michael, Jan Van Eyck's 14th-century miniatures for the Book of Hours of the Duc de Berry and Portrait of a Man by Sicilian master Antonello da Messina.