Question: Which city, Suihua or Gaoyou, is a county-level city under the administration of Yangzhou, Jiangsu province, China, located in the Yangtze River Delta?
Sentence (from "Suihua"): Suihua () is a prefecture-level city in west-central Heilongjiang province, People's Republic of China, adjacent to Yichun to the east, Harbin, the provincial capital, to the south, Daqing to the west and Heihe to the north.
Relevant evidence: Yes