question: A 6th-century source refers to the Sclaveni as living where ?
answer: among nearly impenetrable forests , rivers , lakes , and marshes
turker_answer: A 6th-century source refers to the Sclaveni as living among nearly impenetrable forests , rivers , lakes , and marshes .
rule-based: A 6th-century source refers to the Sclaveni as living among nearly impenetrable forests , rivers , lakes , and marshes .