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To this day Tom Zenk and Rick Martel have differing opinions on the matter of why Tom Zenk left the WWF , all but eliminating the chance of a Can-Am Connection reunion .
 Tom Zenk, Rick Martel, Tom Zenk
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tom Zenk, Rick Martel, Tom Zenk