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but whenever there is some event like National Day or May First , all the ethnic groups get together in Tiananmen Square , and people dress as " minorities , " wear their costumes , their traditional folk dress , even if they have never worn such outfits in their daily lives .
 National Day, May First, Tiananmen Square
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 National Day, May First, Tiananmen Square