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Rakesh Agrawal is a National Medal of Technology and Innovation Laureate as well as the Winthrop E. Stone Distinguished Professor of chemical engineering at Purdue University .
 organization: Technology; person: Winthrop E. Stone; organization: Purdue University
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: Technology, Winthrop E. Stone, Purdue University 
Answer:
 organization: Technology; person: Winthrop E. Stone; organization: Purdue University