Take the following as truth: The interior continues the bands of black and white marble, while elaborately inlaid marble paving one of the cathedral's primary attractions, with large sections regularly covered for protection covers the floor with 56 pictures of biblical and allegorical themes, done over two centuries by some 40 artists.
Then the following statement: "Many artists spent their entire careers creating the pictures now found on the cathedral floor." is true, false, or inconclusive?