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Chang Tsu - chou , now in his 70s , has been a secretary in the rural township government for more than 30 years , and loves Pali more than words can say .
 person: Chang Tsu - chou; date: 70s; date: more than 30 years; geographical social political: Pali
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:
 person: Chang Tsu - chou; date: 70s; date: more than 30 years; geographical social political: Pali