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There are the " Nestorian " churches resulted from the reaction of the Council of Ephesus ( 431 ) , which are the earliest surviving Eastern Christian churches that keep the faith of only the first two ecumenical councils , i.e. , the First Council of Nicaea ( 325 ) and the First Council of Constantinople ( 381 ) as legitimate .
 None
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:  
Answer:
 None