Complex sentence: The final elevated station installed with Rite Hite Revolution High Volume, Low Speed (HVLS) fans from 4 December 2012 as it went operational on 5 January 2013 and this marked the completion of all HVLS fans installation on both North South Line and East West Line.
Split into simpler sentences: The final elevated station installed with Rite Hite Revolution High Volume, Low Speed (HVLS) fans. It went operational on 5 January 2013 and this marked the completion of all HVLS fans installation on both North South Line and East West Line.