Siyi Yue has a representative dialect that is related to what larger language?
Siyi Yue Siyi (Seiyap or Sze Yup in Cantonese; ) is a coastal branch of Yue Chinese spoken mainly in Guangdong province, but is also used in overseas Chinese communities. Within the province, it is mainly spoken in the prefecture-level city of Jiangmen, but pockets exist outside of Jiangmen, including the Doumen and Jinwan districts in Zhuhai, Guzhen in Zhongshan and Jun'an in Foshan. Taishanese, which was one of the most important Chinese dialects in Chinese American communities, is considered a representative dialect.
Ai-Cham language Ai-Cham (autonym: "ʔai˧tʲam˩ "; ) is a language spoken mainly in Diwo 地莪 and Boyao 播尧 Townships, Jialiang District, Libo County, Qiannan Prefecture, Guizhou, China. Alternative names for the language are Jiamuhua, Jinhua and Atsam. Fang-Kuei Li first distinguished the language in 1943. Nearby languages include Bouyei and Mak. However, Yang (2000) considers Ai-Cham and Mak to be different dialects of an identical language.