question: Slavic-speaking tribes were part of what prior to becoming known to the Roman world ?
answer: multi-ethnic confederacies of Eurasia
turker_answer: Slavic-speaking tribes were part of multi-ethnic confederacies of Eurasia prior to becoming known to the Roman world .
rule-based: Slavic-speaking tribes were part of multi-ethnic confederacies of Eurasia prior to becoming known to the Roman world .