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Grace Rogers Cooper ( 22 Nov 1924-25 Nov 2004 ) was a Smithsonian Institution curator , U.S. textile expert and vexillogist , known primarily for her seminal work Thirteen-Star Flags : Keys to Identification , published in 1973 , which exposed a number of “ antique ” flags as modern replicas .
 organization: Smithsonian Institution
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: Smithsonian Institution 
Answer:
 organization: Smithsonian Institution