In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
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Question: Context: Daxing was renamed Chang'an in year 618 when the Duke of Tang, Li Yuan, proclaimed himself the Emperor Gaozu of Tang. Link Information: born Li Yuan, courtesy name Shude, was the founder of the Tang dynasty of China, and the first emperor of this dynasty from 618 to 626. Answer: 8

Answer: How many years did Duke of Tang serve as emperor after renaming Daxing, Chang'an?


Question: Context: Modelmaker Peter Firmin and writer Oliver Postgate similarly created several stop-motion animated works for children during this period, including "Pingwings" (1961–1964), "Pogles' Wood" (1966–1967) and "Clangers" (1969–1972). Link Information: none Answer: none

Answer: Which of the stop-motion animated works created by Firmin and Postgate had the most success?


Question: Context: Rev. Dr. Martin Luther King, Jr. engaged youth activists in protesting against Bull Connor's racist law enforcement practices in Birmingham, Alabama Link Information: Theophilus Eugene Connor (July 11, 1897 – March 10, 1973), known as Bull Connor, Answer: Bull Connor

Answer:
What was Bull Connor's title?