Complex sentence: In 2011 the Liberals won government in a landslide, and the seat of Miranda on a very safe 21.0 percent margin, with 39 seats held by the Coalition on smaller margins.
Split into simpler sentences: In 2011 the Liberals won government in a landslide. The Liberals held it with a majority of 21 percent, with 39 seats held by the Coalition on smaller margins.