instruction: Classify the following as a mountain range, river or volcano: andes, sierra nevada, yangtze, brahmaputra, krakatoa, mt fuji, himalayas, atlas, lena, rhine, kilimanjaro, arkansas, ohio, vesuivus, mt st helens, caucusus
response: Mountain range: andes, himlayas, atlas, caucusus
  River: Yangtze, brahmaputra, arkansas, ohio, lena, rhine
  Volcano: Krakatoa, mt fuji, kilimanjaro, vesuvius, mount st helens