question: In practice , Pre-Columbian refers to the history of the indigenous cultures of America prior to Europeans doing what to them ?
answer: conquered or significantly influenced
turker_answer: In practice , Pre-Columbian refers to the history of the indigenous cultures of America prior to Europeans conquering or significantly influencing them .
rule-based: In practice , Pre-Columbian refers to the history of the indigenous cultures of America prior to Europeans doing conquered or significantly influenced to them .