Complex sentence: Other evidence supporting occupation by refugees includes the ceramic material uncovered during the 1973-1974 excavations, which bore more similarities to Middle and Lower Cherokee ceramics than to Overhill ceramics.
Split into simpler sentences: Other evidence supporting occupation by refugees from these areas includes the ceramic material uncovered during the 1973-1974 excavations. The artifacts bore more similarities to Middle and Lower Cherokee ceramics than to Overhill ceramics.