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The 2013 Ivy League Baseball Championship Series will be held at Robertson Field at Satow Stadium on the campus of Columbia University in New York , New York on May 4 and 5 .
 Ivy, Columbia University, New York , New York
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ivy, Columbia University, New York , New York