question: What organization recommended that race and ethnicity categories be combined into one question for the 2000 US census ?
answer: the American Anthropological Association
turker_answer: The American Anthropological Association recommended that race and ethnicity categories be combined into one question for the 2000 US census .
rule-based: The American Anthropological Association recommended that race and ethnicity categories be combined into one question for the 2000 US census .