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Pächt was , alongside Hans Sedlmayr , one of the proponents of art-historical Strukturforschung , a key scholar of the so-called New Vienna School of Art History ( an art-historical school involved in the reformulation of methodological approaches first advanced by Alois Riegl ) .
 person: Pächt; person: Hans Sedlmayr; organization: Vienna; person: Alois Riegl
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Pächt; person: Hans Sedlmayr; organization: Vienna; person: Alois Riegl