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In 1998 Heaney-Grier captained the first United States Freediving Team to compete in the World Cup Freediving Championships held in Sardinia , Italy .
 Heaney-Grier
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Heaney-Grier