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He was the brother of Johan Ludvig Reventlow which in the late 1700s served as his colleague , of salonist Louise Stolberg , who was his intellectual partner and opponent through their extensive mail correspondence , and of Commodore Conrad Georg Reventlow .
 person: Reventlow; person: Louise Stolberg; person: Conrad; person: Reventlow
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: Reventlow, Louise Stolberg, Conrad, Reventlow 
Answer:
 person: Reventlow; person: Louise Stolberg; person: Conrad; person: Reventlow