80122
For example , the axiom of choice implies that , when the size under consideration is the ordinary notion of length for subsets of the real line , then there exist sets for which no size exists , for example , the Vitali sets .
 Vitali
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vitali