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** '' Kingdom of Ulaid '' ' – Eochaid mac Fiachnai ( 790–810 )
 Kingdom of Ulaid, Eochaid mac Fiachnai
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kingdom of Ulaid, Eochaid mac Fiachnai