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Rock was a supporter of , the radical architecture group , Archigram in the 1960s and 1970s .
 person: Rock; organization: Archigram
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: Rock, Archigram 
Answer:
 person: Rock; organization: Archigram