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History Trinity Valley School was founded in 1959 by George Bragg and Stephen Seleny .
 organization: Trinity Valley; person: George Bragg
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: Trinity Valley, George Bragg 
Answer:
 organization: Trinity Valley; person: George Bragg