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Hearn 's sister , Cathy , and his ex-brother-in-law , Lecky Haller , also competed in canoe slalom for the United States .
 Hearn, Cathy, Lecky Haller, United States
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hearn, Cathy, Lecky Haller, United States