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As an undergraduate , she studied mathematics at Harvard University ; while at Harvard , she wrote three research papers in mathematics ( two on modular form s in number theory and one on permutation pattern s ) and won the Elizabeth Lowell Putnam award for outstanding performance by a woman in the Putnam Competition in 2005 , 2006 , and 2007 .
 organization: Harvard University; organization: Harvard; person: Elizabeth Lowell Putnam; person: Putnam
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Harvard University; organization: Harvard; person: Elizabeth Lowell Putnam; person: Putnam