Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. IS-1 Sęp -  The IS-1 Sęp (Instytucie Szybownictwa – gliding institute) was a single-seat high-performance glider designed and built in Poland from 1947.
Mean Of Transportation

Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Peureulak River -  Peureulak River is a river in northern Sumatra Indonesia.
Natural Place

Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Săpâncioara River -  The Săpâncioara River is a headwater of the Săpânța River in Romania.
Natural Place