instruction:
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.
question:
Context: The NFL locked out its officials in June Link Information: The 2012 NFL referee lockout was a labor dispute between the National Football League (NFL) and the NFL Referees Association Answer: 2012
answer:
In what year did the NFL lock its official out in June?


question:
Context: The Queen's Fool by Link Information: none Answer: none
answer:
How many other books has the author of The Queen's Fool written?


question:
Context: #5 Duke Blue Devils (who would be the eventual National Champions Link Information:  under head coach Mike Krzyzewski, who is nicknamed "Coach K". Answer: Mike Krzyzewski
answer:

Who coached the National Champions of the 2009-2010 season?