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Promoters of tourism to the falls cited the " lonely grandeur " of the surrounding country and the fact that the falls were not " overshadowed by a city " , perhaps in reference to Niagara Falls which at this time had become infamous for the rampant commercial development adjacent to it .
 Niagara Falls
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Niagara Falls