Question: Which city, Daqing or Pengzhou, is a prefecture-level city in the west of Heilongjiang province, People's Republic of China?
Sentence (from "Anda, Heilongjiang"): Anda () is a county-level city in western Heilongjiang province, People's Republic of China, located on the Harbin-Manzhouli Railway (formerly known as the Chinese Eastern Railway) about 30 km southeast of Daqing and 110 km northwest of Harbin, and is under the administration of Suihua City.
Relevant evidence: No