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Janssen founded his own research laboratory in 1953 , with a loan of 50,000 Belgian francs from his father .
 person: Janssen
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: Janssen 
Answer:
 person: Janssen