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Gary Brent Smith ( born November 21 , 1973 in Dallas , Texas ) is a former professional American football player who played guard / Offensive tackle for five seasons for the Miami Dolphins and New York Jets .
 Brent, Dallas , Texas, Miami Dolphins, New York Jets
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Brent, Dallas , Texas, Miami Dolphins, New York Jets