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The first stage was an Extended Long Tank Thor , re-engined with the Rocketdyne RS-27 replacing the earlier MB-3-III engine .
 organization: Rocketdyne
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: Rocketdyne