Problem: Given the question: Which American musician who participated in the "Nashville sound" for most of his professional career covered the song "I'm Gonna Be a Wheel Someday?"
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The answer is:
Boots Randolph

Problem: Given the question: Which genus has more species, Wahlenbergia or Horminum?
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The answer is:
Wahlenbergia

Problem: Given the question: how is Out of the Shadow and Jackass 3D connected?
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The answer is:
film