82233
Today , Roman numerals are still used for enumeration of lists ( as an alternative to alphabetical enumeration ) , for sequential volumes , to differentiate monarchs or family members with the same first names , and ( in lower case ) to number pages in prefatory material in books .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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