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: In the 1880s, he also attended Columbian College (now George Washington University) for medicine, Link Information: The George Washington University (GW or GWU) is a private research university in Washington, D.C. Answer: Washington, D.C.
answer:
What city was George Washington University located?


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: but they are known for their surviving massive earthwork mounds Link Information:  earthworks are artificial changes in land level, typically made from piles of artificially placed or sculpted rocks and soil. Answer:  sculpted rocks and soil.
answer:

What are earthwork mounds made of?