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Real Estate Development In the 1920 , E. J. Sweeney purchased a tract of land known as Indian Village in the southern portion of Kansas City from William Rockhill Nelson .
 location: Kansas; person: William Rockhill Nelson
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:
 location: Kansas; person: William Rockhill Nelson