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Since the 1970 s , Omaha has continued expanding and growing , mostly to available land to the west. West Omaha has become home to the majority of the city 's population .
 Omaha, West Omaha
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Omaha, West Omaha