359839
After earning her Ph. D , she taught at Swarthmore College and Brown University , before returning to Princeton as a professor in 1995 .
 Swarthmore College, Brown University
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Swarthmore College, Brown University