Take the following as truth: In the apse of the Greek-columned interior is a delightful mosaic of St. Apollinaris, Ravenna's first martyr and bishop, surrounded by 12 sheep representing the Apostles, with Moses and Elijah in the clouds above him.
Then the following statement: "The mosaic uses tiles of only four colors to achieve a surreal, dreamlike quality. " is true, false, or inconclusive?