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In a 1962 – 1963 episode that came to be called " the Peyton Road affair " , Atlanta mayor Ivan Allen responded to residents ' fears of blockbusting by directing city staff to erect barricades on Peyton Road and Harlan Road to restrict access to Cascade Heights , thus preventing African American homeseekers from getting to the neighborhood from Gordon Road .
 location: Atlanta; person: Ivan Allen; location: Cascade Heights
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: Atlanta, Ivan Allen, Cascade Heights 
Answer:
 location: Atlanta; person: Ivan Allen; location: Cascade Heights