Complex sentence: Wickremesinghe's coalition alliance, the United National Front for Good Governance, won the 2015 parliamentary election, although it fell short of an outright majority, and Wickremesinghe was re-elected as Prime Minister.
Split into simpler sentences: Wickremesinghe's coalition alliance, the United National Front for Good Governance won the 2015 parliamentary election. Although it fell short of an outright majority, Wickremesinghe was re-elected as Prime Minister.