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A study by Princeton University outlined these common , prescriptive gender stereotypes : " masculine " - acts as a leader , aggressive , ambitious , analytical , assertive , athletic , competitive , defends own beliefs , dominant , forceful , has leadership abilities , independent , individualistic , makes decisions easily , self-reliant , self-sufficient , strong-personality , willing to take a stand , and willing to take risks .
 Princeton University
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Princeton University