Complex sentence: The documenta 14 will be the fourteenth edition of the art exhibition documenta that openend on 8 April in Athens and lasts in Greece until the 16 July 2017.
Split into simpler sentences: The documenta 14 will be the fourteenth edition of the art exibithion documenta. It will be openend on 8 april in Athens and lasts in Greece until the 16 July 2017.