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One of the area 's major north–south trade routes crossed the Seine on the île de la Cité ; this meeting place of land and water trade routes gradually became an important trading centre .
 location: Seine; location: île de la Cité
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Seine; location: île de la Cité