8893
The main rebel group in south Sudan said on Tuesday it was trying to arrange the release of six Roman Catholic missionaries , including three Australian nuns , held for nearly two weeks .
 Australian, Roman Catholic, 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:
 Australian, Roman Catholic, Sudan