Complex sentence: Moussa Mara is a Malian politician and Prime Minister of Mali since 5 April 2014 following the unexplained resignation of his predecessor Oumar Tatam Ly.
Split into simpler sentences: Moussa Mara is a Malian politician who has been Prime Minister of Mali since 2014. Mara was appointed as Prime Minister on 5 April 2014, following the unexplained resignation of his predecessor Oumar Tatam Ly.