Here's a complex question that requires someone to reason about the input, can you answer it? Walker County was named after which member of the US Senate from Mississippi?
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Answer: Robert J. Walker

Here's a complex question that requires someone to reason about the input, can you answer it? What was the name of the older brother of the king who reigned when Roger Hillary married ?
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Answer: Alphonso

Here's a complex question that requires someone to reason about the input, can you answer it? Which low-bypass afterburning turbofan jet engine is used to power the Saab JAS 39 Gripen?
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Answer:
Volvo RM12