Complex sentence: The VL Humu was a Finnish fighter aircraft, designed by the State Aircraft Factory ("Valtion lentokonetehdas") in 1944 and based on the American Brewster F2A design.
Split into simpler sentences: The VL Humu was a Finnish fighter aircraft, designed by the State Aircraft Factory ("Valtion lentokonetehdas") in 1944. The Humu was based on the American Brewster F2A design.