"Wenshan Dai" is a documentary film of the Dai ethnic group in Wenshan Prefecture of Yunnan Province, China. I suppose this group of Dai people to be of Central Tai group instead of the Southwestern Tai group, to which all other Dai groups in Yunnan Province belong. The evidence can be summarized from their language, culture, clothing, customs, and religious belief presented in the video. This group of Dai people may be identical with a specific western branch of the Tay people in Northern Vietnam, since both of them share similar ethnic features aforementioned. Moreover, they are both adjacently distributed crossing the Sino-Vietnamese border. I would like to carry a fieldwork research on this language in the future to test my hypothesis.

我剛看了由中國雲南文山壯族苗族自治州官方錄製的《文山傣族》的紀錄片，發現從語言、文化、服飾、習慣和宗教信仰等看，這一支傣族其實與越南的Tay（漢譯“岱族”）人的西部支系應為同一人群，語言上應該屬於台語支中部組，而不像其他傣族支系一樣屬於台語支西南組。我很有興趣未來實地調查文山傣族的語言，看看我這個初步印象是否可以得到證實。