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Mark Weinstein and Dr. Jonathan Wolfe collectively founded and launched Sgrouples after noticing that users of large social networking platforms , like Facebook , were fatigued due to breaches in their privacy .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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