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Operads have since found many applications , such as in deformation quantization of Poisson manifolds , the Deligne conjecture , or graph homology in the work of Maxim Kontsevich and Thomas Willwacher .
 person: Poisson; person: Deligne; person: Maxim Kontsevich; person: Thomas Willwacher
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: Poisson; person: Deligne; person: Maxim Kontsevich; person: Thomas Willwacher