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Its location was first settled in the 7th century BC by a tribe of Gauls ( themselves part of the Celts ) , which were the inhabitants of this part of Italy before the Roman conquest ( see also Gallia Cisalpina ) .
 Italy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Italy