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Following World War II , she returned to work at the New York Infirmary and also at the Memorial Sloan-Kettering Cancer Center , where she described the twelve cases of what was then known as juvenile melanoma and recognized that these lesions have benign behavior despite their microscopic resemblance to melanoma .
 organization: Infirmary; organization: Memorial Sloan-Kettering Cancer Center
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: Infirmary, Memorial Sloan-Kettering Cancer Center 
Answer:
 organization: Infirmary; organization: Memorial Sloan-Kettering Cancer Center