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Composer Liam Reilly had represented Ireland in the 1990 Eurovision Song Contest in Zagreb , coming in second place with his own composition ; Kim Jackson had also provided backing vocals for that entry .
 Liam Reilly, Zagreb, Kim Jackson
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Liam Reilly, Zagreb, Kim Jackson