519
Of 12 participants with the more protective haptoglobin only one had eye disease .
 person: 12 participants with the more protective haptoglobin; person: one
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: 12 participants with the more protective haptoglobin; person: one