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: which later formed the core of government bureaucracy during the Shah and Rana period. Link Information: none Answer: none
answer:
How much time was between the periods?


question:
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
answer:
How many years was Harry Truman president?


question:
Context: After the beginning of the Civil War, the revolutionary militias imprisoned and killed him. Link Information: 

The Spanish Civil War () was a civil war in Spain fought from 1936 to 1939 Answer: it is believed that the number of on-the-spot executions was highest during initial months of the war 
answer:

How many months after the start of the Civil War was Alvarez killed?