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More recently , Abraham Robinson restored infinitesimal methods in his 1966 book " Non-standard analysis " by showing that they can be used rigorously .
 person: Abraham Robinson
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: Abraham Robinson 
Answer:
 person: Abraham Robinson