Q:The River Oise (French pronunciation: [waz]) is a right tributary of the River Seine flowing for 302 km in Belgium and France. Its source is in the Belgian province Hainaut south of the town Chimay. It crosses the border with France after about 20 km. It flows into the Seine in Conflans-Sainte-Honorine near Paris. Its main tributary is the River Aisne. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Natural Place