Complex sentence: Mohammed Rabi'u Musa Kwankwaso is a Nigerian politician who was Governor of Kano State from 1999--2003 and again from 2011--2015.
Split into simpler sentences: Mohammed Rabi'u Musa popularly knows as Rabiu Musa Kwankwaso is a Nigerian politician. He was two times Governor of Kano State from 1999--2003 and 2011--2015.