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He also published his first book on linguistics , " Syntactic Structures " , a work that radically opposed the dominant Harris–Bloomfield trend in the field .
 person: Harris–Bloomfield
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: Harris–Bloomfield 
Answer:
 person: Harris–Bloomfield