Complex sentence: Mutya Keisha Siobhan (often shortened to MKS), are an English girl group based in London, formed in 2011 of Siobhán Donaghy, Mutya Buena and Keisha Buchanan.
Split into simpler sentences: Mutya Keisha Siobhan (often shortened to MKS) are an English girl group based in London. Formed in 2011, the group consists of Siobhán Donaghy, Mutya Buena and Keisha Buchanan.