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Roger Wu , manager of the “ New York Crowdfunds ” competition , however , has warned that entrepreneurs should be wary of relying on third party service providers , like CrowdHut , since they can take a large fraction of your revenue , and hurt your reputation if they do n't serve your customers well .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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