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It is located on the Durme , a tributary of the Scheldt , and is the second most important city of the Waasland after Sint-Niklaas .
 location: Durme; location: Scheldt; location: Waasland; location: Sint-Niklaas
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: Durme; location: Scheldt; location: Waasland; location: Sint-Niklaas