Passage: Yunfu, formerly romanized as Wanfow, is a prefecture-level city in western Guangdong province, People's Republic of China. It borders Zhaoqing to the north, Foshan to the east, Jiangmen to the southwest, Yangjiang to the south, Maoming to the southwest, and the autonomous region of Guangxi to the west.

Question: Which area of PRC is Yunfu situated?
western Guangdong province