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: When Harry Truman became president in April 1945, upon FDR's death, the vice presidency Link Information: As such Truman selected Alben Barkley of Kentucky as his running mate in the 1948 presidential election. When Democrats regained control as a result of the 1948 elections, Answer: 8

A: How many years was Harry Truman president?
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Q: Context: He traveled with Blanco's forces to Ciudad Victoria and later Monterrey. Link Information: Ciudad Victoria had until that year a population of 346,029 inhabitants Answer: Monterrey

A: Which of the cities Runyon traveled with Blanco's forces to was larger?
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Q: Context: Gruden acquired his nickname "Chucky" from Raiders defensive lineman Grady Jackson, Link Information: Grady O'Neal Jackson (born January 21, 1973) Answer: January 21, 1973

A:
When was the person born who gave Jon Gruden his nickname?
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