8915
He said Australian diplomats in Nairobi were working with the Roman Catholic church in southern Sudan and with U.S. and Italian diplomats in the region to help free the missionaries .
 Nairobi, Italian, Roman Catholic, U.S., Australian, Sudan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Nairobi, Italian, Roman Catholic, U.S., Australian, Sudan