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Having been through the Tiananmen massacre , Wei felt compelled to warn the people of Taiwan , " You absolutely must not think the way the students did in Beijing in '89 .
 event: the Tiananmen massacre; person: Wei; geographical social political: Taiwan; geographical social political: Beijing; date: '89
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: 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:
 event: the Tiananmen massacre; person: Wei; geographical social political: Taiwan; geographical social political: Beijing; date: '89