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and it IS the infrastructure costs that are much more at issue than density per se because discussions of density .. seem to always flow back to infrastructure and not focus on density itself as a good or bad thing .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
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