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From December 1997 to January 2001 , he served as Chairman and CEO of R&B Falcon Corporation until its merger with Transocean .
 organization: Transocean
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: Transocean 
Answer:
 organization: Transocean