Question: Which district, Echeng District or Taonan, is one of three administrative districts of the prefecture-level city of Ezhou?
Sentence (from "Kinnaur district"): As of 2011, it is the second least populous district of Himachal Pradesh (out of 12 districts), after Lahaul and Spiti, in spite of that nine vital languages are spoken in the district.
Relevant evidence: No