Complex sentence: The Ventura Bus Lines was founded in 1924 by Harry Cornwall, who began operating a bus route between Box Hill and the city, and later running buses along dirt tracks between Box Hill and Mentone, which roughly equates to the modern 700 bus route.
Split into simpler sentences: The Ventura Bus Lines was founded in 1924 by Harry Cornwall. Cornwall began operating a bus route between Box Hill and the city, and later running buses along dirt tracks between Box Hill and Mentone, which roughly equates to the modern 700 bus route.