Complex sentence: Singapore Bus Services received 200 Leyland Olympian 2-axles between 1986 and 1989; of which these were deployed to Toa Payoh, Ang Mo Kio and Jurong depots.
Split into simpler sentences: Singapore Bus Services received 200 Leyland Olympian 2-axles between 1986 and 1989. These were deployed to Toa Payoh, Ang Mo Kio and Jurong depots.