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As an owner Kirkwood was also briefly a NASCAR owner who had his vehicles race in one race in the 1949 season in addition to four races in the 1952 season .
 Kirkwood, NASCAR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kirkwood, NASCAR