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.
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Question: Context: The town continued to flourish under the Seljuk Empire, when the Seljuk ruler Ahmad Sanjar built the city a new wall Link Information: none Answer: none

Answer: What did Ahmad Sanjar build the wall out of?


Question: Context: They served on opposite sides of the American Civil War: Meagher serving with the Union, Link Information: John Mitchel (; 3 November 1815 Answer: 46

Answer: How old was Mitchel when the event where he served with the Union began?


Question: Context: Later, he acted in the Tollywood industrial hit Bobbili Brahmanna which earned him Filmfare Best Actor Award (Telugu) and Nandi Award for Best Actor. Link Information: Brahmanna (Krishnam Raju) Answer: Brahmanna 

Answer:
What role did Raju play in the Tollywood industrial hit?