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: He launched Magill magazine in September 1977 with Noel Pearson and Mary Holland. Link Information: Mary Holland (19 June 1935 – 7 June 2004) Answer: 42
[A]: How old was Mary Holland when Magill magazine was launched?


[Q]: Context: the Official Airline Guide (OAG) listed up to eight round trip flights a day operated by Time Air nonstop between Lethbridge and Calgary with Fokker F27 Friendship Link Information: the airline was operating larger Dash 7 turboprops on the Lethbridge-Calgary route Answer: Dash 7
[A]: How many more passengers could fly on the Dash 7 compared with the Fokker F27 Friendship?


[Q]: Context: To handle their data storage needs, U2 used several products from EMC Corporation Link Information: EMC, founded in 1979 Answer: 1979
[A]:
What year was the tech company that made the products used by U2 on their concerts found?