(Question)
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. Dorogna River -  The Dorogna River is a tributary of the Almaş River in Romania.
(Answer)
Natural Place


(Question)
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. Taylor Cub -  The Taylor Cub was originally designed by C. Gilbert Taylor as a small light and simple utility aircraft evolved from the Arrowing Chummy. It is the forefather of the popular Piper J-3 Cub over 20000 of which were built.[citation needed]
(Answer)
Mean Of Transportation


(Question)
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. Calystegia peirsonii -  Calystegia peirsonii is a species of morning glory known by the common name Peirson's false bindweed. It is endemic to Los Angeles County California occurring at the junction of the San Gabriel Mountains and the Mojave Desert in the vicinity of the Antelope Valley.
(Answer)
Plant