Take the following as truth: Its prized possessions are the haunting Volto Santo (Holy Face), a wooden crucifix said to have been carved by Nicodemus and possessing miraculous powers; and the graceful white marble tomb of Ilaria del Carretto Guinigi by master Sienese sculptor Jacopo de lla Quercia (1408) in the former sacristy.
Then the following statement: "A painting is its prized possession. " is true, false, or inconclusive?