Take the following as truth: The basilica's highlight, and generally accepted as the work of a young Giotto, the Life of Francis (1296-1304) is movingly celebrated in 28 scenes along the lower tier (starting from the right transept), while 32 frescoes in the upper tier illustrate scenes from the Old and New Testament.
Then the following statement: "In both tiers, there are artworks depicting scenes." is true, false, or inconclusive?