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Professor Chen Yu - feng of Providence University , who has been studying Taiwan 's flora for many years , explains that false cypress forests often grew where river erosion created large areas of debris from rockslides .
 person: Chen Yu - feng; organization: Providence University; geographical social political: Taiwan
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: Chen Yu - feng; organization: Providence University; geographical social political: Taiwan