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


(Question)
Westland Widgeon (helicopter) -  For the 1924 aeroplane see Westland Widgeon (fixed wing)The Westland Widgeon helicopter was a private venture by Westland Aircraft as an improvement on the Westland WS-51 Dragonfly. 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)
Mean Of Transportation


(Question)
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. 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)
Plant