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.

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

Example Input: Context: The river Link Information: flows south to Daisy Lake then east to Big Trout Lake Answer: Ontario, Canada
Example Output: Which province in Canada is Daisy Lake located in where the Petawawa River flows south to before heading east to Big Trout Lake?

Example Input: Context: Colin Tapley, who would later appear opposite Gray in the TV series Mark Saber, was the Link Information: Gwenllian Gill, who later followed Tidbury to Answer: Britain
Example Output:
Of the two countries where Colin Tapley was from and where Gwenllian followed Tidbury, which one has a larger population?