question: In 2009 , who named Northwestern as one of the top 10 universities in the country in purchasing renewable energy ?
answer: Green Power Partnership
turker_answer: In 2009 , The Green Power Partnership named Northwestern as one of the top 10 universities in the country in purchasing renewable energy .
rule-based: In 2009 , green Power Partnership named Northwestern as one of the top 10 universities in the country in purchasing renewable energy .