Complex sentence: The fifth season of the NBC American supernatural drama series "Grimm" was announced on February 5,2015 and premiered on October 30,2015 and concluded on May 20,2016.
Split into simpler sentences: The fifth season of the NBC American supernatural drama series "Grimm" was announced on February 5,2015. It premiered on October 30,2015 and concluded on May 20,2016.