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Academic Fraternities and Sororities Fraternities Interfraternity Council ( IFC ) National Pan-Hellenic Council ( NPHC ) United Sorority Fraternity Council ( USFC ) Sororities National Panhellenic Council ( Panhellenic ) National Pan-Hellenic Council ( NPHC ) To unify the nine black fraternities and sororities .
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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:
 None