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.

[Q]: Context: Since its debut in 1969, Sesame Street had given Jim Henson's Muppet characters exposure Link Information: James Maury Henson (September 24, 1936 – May 16, 1990) was an American puppeteer, animator, cartoonist, actor, inventor, filmmaker, and screenwriter who achieved worldwide notice as the creator of The Muppets (1955–present) Answer: 14
[A]: How long before the debut on "Sesame Street" had Jim Henson created the Muppets?


[Q]: Context: On October 31, 2007, during a radio interview with Ryan Seacrest, Link Information: 

Justin Randall Timberlake (born January 31, 1981) Answer: 26
[A]: How old was Justin Timberlake the year Spears gave her interview with Ryan Seacrest?


[Q]: Context: He did National Service in the Coldstream Guards from 1955 to 1958. Link Information: William granted the citizens of London a charter in 1075 Answer: 883
[A]:
How long had the City of London been incorporated for by the year Hamilton left National Service?