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Scientists have suspected there must be something different about the genetic make up of diabetics who develop complications ; and that difference may have to do with haptoglobin , a protein whose function is to mop up blood vessel destroying free radicals .
 person: Scientists; person: diabetics who develop complications; person: who
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 person: Scientists; person: diabetics who develop complications; person: who