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Moving to New York City after graduation , Tsai embarked on a successful career as an architectural engineer working for clients such as Walter Gropius , Mies van der Rohe , Synergetics , and Skidmore , Owings and Merrill .
 person: Walter Gropius; person: Mies van der Rohe; organization: Skidmore , Owings and Merrill
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: Walter Gropius, Mies van der Rohe, Skidmore , Owings and Merrill 
Answer:
 person: Walter Gropius; person: Mies van der Rohe; organization: Skidmore , Owings and Merrill