quality:corruption, information:filtering, structural:reformatting, stylistic:tone
Taishanese

When the Chinese government removed the prohibition on emigration in the mid-19th century, many people from rural areas in the coastal regions of Fujian and Guangdong emigrated to Southeast Asia and North America. Until the late 20th century, the vast majority of Chinese immigrants to North America came from the Siyi ('four counties') to the southwest of Guangzhou. The speech of this region, particularly the Taishan dialect, is thus the most common Yue variety in these areas. It is only partially understood by speakers of Cantonese.