Complex sentence: Reports vary greatly, the Allies documented 30 bombing raids, while contemporary Italian accounts claim 54; fatalities recorded range from under 1,000 up to as many as 4,000 of the city's approximately 20,000 inhabitants.
Split into simpler sentences: Reports vary greatly; the Allies documented 30 bombing raids, while contemporary Italian accounts claim 54. Fatalities recorded range from under 1,000, up to as many as 4,000 of the city's 20,000 inhabitants.