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.

[EX Q]: Context: "Lisa the Skeptic" is the eighth episode of The Simpsons' Link Information: none Answer: none
[EX A]: How many episodes aired in the same season as "Lisa the Skeptic"?

[EX Q]: Context: before becoming a subordinate of Cao Cao, Link Information: none Answer: none
[EX A]: When was the person to whom Ji was a subordinate born?

[EX Q]: Context: The story opens in Venice Link Information: The population in the historic old city declined much faster: from about 120,000 in 1980 to about 60,000 in 2009, and to below 55,000 in 2016 Answer: below 55,000
[EX A]:
What is the population of the city where Xuan-Yuan Sword opens?