Complex sentence: Dai people located in Yunnan uses a special type of paper called "嘎拉沙" (Garasa) to make oil paper umbrella, which is brushed with sesame oil, the Dai's believe that the umbrella could lead the dead to heaven.
Split into simpler sentences: Dai people located in Yunnan use a special type of paper called "嘎拉沙" (Garasa) to make oil paper umbrella, which is brushed with sesame oil. The Dai believe that the umbrella could lead the dead to heaven.