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Research into the properties of vortices has thrived since a comprehensive paper by Nye and Berry , in 1974 , described the basic properties of " dislocations in wave trains " .
 person: Nye; person: Berry
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: Nye, Berry 
Answer:
 person: Nye; person: Berry