Question: A brand that is formerly known as Tricon Global Restaurants, Inc., operates what restaurant chain that had over 15,000 locations worldwide as of 2015?
Sentence (from "Yum! Brands"): operates the brands Taco Bell, KFC, Pizza Hut, and WingStreet worldwide, except in China, where the brands are operated by a separate company, Yum China.
Relevant evidence: Yes