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During that period , in 1981 , Dehousse was elected as a Senator and became the first Minister-President of the Walloon Region .
 person: Dehousse
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: Dehousse 
Answer:
 person: Dehousse