Complex sentence: The Tseung Kwan O Line (TKL) is one of the eleven lines of the MTR system in Hong Kong, indicated with the colour purple.
Split into simpler sentences: The Tseung Kwan O Line is one of the eleven lines of the MTR system in Hong Kong. It runs from Hong Kong Island to the new town of Tseung Kwan O. The line is indicated with the colour purple.