10153
The existence of Quine atoms ( sets that satisfy the formula equation " x " " = " { " x " , i.e. have themselves as their only elements ) is consistent with the theory obtained by removing the axiom of regularity from ZFC .
 person: Quine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Quine