question: What grade was given to Northwestern on the 2010 College Sustainability Report Card by The Sustainable Endowments Institute ?
answer: B -
turker_answer: A B - grade was given to Northwestern on the 2010 College Sustainability Report Card by The Sustainable Endowments Institute .
rule-based: B was given to Northwestern on the 2010 College Sustainability Report Card by The Sustainable Endowments Institute .