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This agreement required significant design changes to allow the canal to carry the wider boats used on the broad gauge Leeds and Liverpool Canal , Although the necessary changes were implemented , the route of the Leeds and Liverpool Canal was altered and the link was not built .
 Leeds and Liverpool Canal, Leeds and Liverpool Canal
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Leeds and Liverpool Canal, Leeds and Liverpool Canal