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Robert Boyle was a strong proponent of corpuscularianism and used the theory to exemplify the differences between a vacuum and a plenum , by which he aimed to further support his mechanical philosophy and overall atomist theory .
 person: Robert Boyle
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: Robert Boyle 
Answer:
 person: Robert Boyle