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Ecological systems theory , originally formulated by Urie Bronfenbrenner , specifies four types of nested environmental systems , with bi-directional influences within and between the systems .
 person: Urie Bronfenbrenner
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Urie Bronfenbrenner 
Answer:
 person: Urie Bronfenbrenner