question: Which researchers studied corruption from Sub-Saharan countries from 1970 to 1996 ?
answer: University of Massachusetts Amherst
turker_answer: University of Massachusetts Amherst researchers studied corruption from Sub-Saharan countries from 1970 to 1996 .
rule-based: University of Massachusetts Amherst studied corruption from Sub-Saharan countries from 1970 to 1996 .