question: Why did the Kievan state prosper ?
answer: abundant supply of furs , beeswax , honey , and slaves for export
turker_answer: The Kievan state prospered because of abundant supply of furs , beeswax , honey , and slaves for export .
rule-based: The Kievan state prospered because of abundant supply of furs , beeswax , honey , and slaves for export .