Question: Are Wanding Town and Jiujiang, Guangdong both frontier towns?
Sentence (from "Wanding Town"): Wanding Town, also known as "Wandingzhen" and "Wanting" (畹町镇; meaning in Tai Nüa language: "the sun shining overhead"), is a frontier town in Ruili City, Dehong Prefecture, Yunnan Province, China.
Relevant evidence: Yes