250403
Below the national level an ombudsman may be appointed by a state , local or municipal government , and unofficial ombudsmen may be appointed by , or even work for , a corporation such as a utility supplier or a newspaper , for an NGO , or for a professional regulatory body .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None