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For many years , his father was in the waiters ' union and worked as a waiter for weddings and " B'nai Mitzvah " .
 B'nai Mitzvah
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 B'nai Mitzvah