Question: Are Xiaoyi and Tengchong county-level cities in the same province ? 
Sentence (from "Tengchong"): English language sources of the late nineteenth and early twentieth centuries use names such as Tingyueh, Teng Yueh, Momein, and Momien, these last two from the name for the place, one of the former Chinese Shan States, in the Shan language.
Relevant evidence: No