[['model', 'build date', 'total produced', 'wheel arrangement', 'prime mover', 'power output'], ['c - 424', '1963 - 1967', '92', 'b - b', '16 - 251b', ''], ['m - 420', '1973 - 1977', '92', 'b - b', '12 - 251c', ''], ['m - 420b', '1975', '8', 'b - b', '12 - 251c', ''], ['m - 420r', '1974 - 1975', '5', 'b - b', '12 - 251c', ''], ['m - 420tr', '1972', '2', 'b - b', '12 - 251c', ''], ['m - 420tr', '1975', '15', 'b - b', '12 - 251c', ''], ['m - 424', '1980', '19', 'b - b', '16 - 251b', '']]
all of the Diesel locomotives that were Produced had the same B - B Wheel Arrangement
all of the [ENT] locomotives that were [ENT] had the same [ENT] [ENT]