Premise: The fourth floor of the town hall (entrance on Corso Vannucci) is given over to the Galleria Nazionale dell'Umbria, expanded in 1999, a handsomely modernized setting for a splendid collection of Umbrian and Tuscan paintings from the 13th to 18th centuries.

Hypothesis: The ground floor of the town hall is where all paintings are diplayed.
Relation: contradiction