question: The mountains forming to the southwest of the Appalachians in the Carboniferous are known as what ?
answer: the Ouachita Mountains
turker_answer: The mountains forming to the southwest of the Appalachians in the Carboniferous are known as the Ouachita Mountains .
rule-based: The mountains forming to the southwest of the Appalachians in the Carboniferous are known as the Ouachita Mountains .