Question: Lopan River - The Loppan' River () is a river that rises in Belgorod Oblast of Russia and flows across the Russian-Ukrainian border into Kharkiv Oblast where it joins the Udy River in Kharkiv. The river is 93 km long. The Kharkiv River is one of its tributaries. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
Answer:
Natural Place