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Nexenta OS , officially known as the Nexenta Core Platform , was a computer operating system based on OpenSolaris and Ubuntu that runs on IA-32 - and x86-64 - based systems .
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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:  
Answer:
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