Complex sentence: There are 316 lakes in Keuruu, the largest of which are Keurusselkä-Ukonselkä, Pihlajavesi and Liesjärvi.
Split into simpler sentences: There are 316 lakes in Keuruu. Biggest lakes are Keurusselkä-Ukonselkä, Pihlajavesi and Liesjärvi.