Complex sentence: Kroměříž Proclamation is a petition initiative that was started on 21 May 2016 by Michael Kocáb, with the aim of finding a candidate for the 2018 Czech presidential election who could defeat incumbent Miloš Zeman.
Split into simpler sentences: Kroměříž Proclamation is a petition initiative that was started on 21 May 2016 by Michael Kocáb. It aims to find a candidate for Czech presidential election, 2018 who could defeat incumbent Miloš Zeman.