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He was one of a small group that helped to develop the system at Stanford that later resulted in Sun Microsystems , and later was a founder Silicon Graphics in 1982 .
 organization: Stanford; organization: Sun Microsystems; organization: Silicon Graphics
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: Stanford, Sun Microsystems, Silicon Graphics 
Answer:
 organization: Stanford; organization: Sun Microsystems; organization: Silicon Graphics