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He finds some people who claim to have found love and friendship without ever having really met , he looks at companies who have used these virtual worlds to do business including IBM and the Metaverse evangelist Ian Hughes , also the developers Rivers Run Red , who have pioneered virtual worlds for brands and business use .
 organization: IBM; person: Ian Hughes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: IBM; person: Ian Hughes