Question: Sŏsŏng-guyŏk, or Sosong District, is one of the 19 guyŏk of Pyongyang,  is the capital and largest city of which country?
Sentence (from "Ryongsong-guyok"): Ryongsŏng-guyŏk, or Ryongsŏng District (룡성구역) is one of the 19 guyŏk that constitute Pyongyang, North Korea.
Relevant evidence: No