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I am concerned about Donald Zook ( ph ) , who ' s head of a medical malpractice insurance company , a big one in the West , saying that his insurance company executive colleagues should not blame the tort injury system .
 organization: a medical malpractice insurance company; organization: a big one in the West; organization: insurance company; person: I; person: Donald Zook ( ph ) , who ' s head of a medical malpractice insurance company; person: who; person: head of a medical malpractice insurance company; person: his; person: his insurance company executive colleagues; person: insurance company executive; location: the West
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 organization: a medical malpractice insurance company; organization: a big one in the West; organization: insurance company; person: I; person: Donald Zook ( ph ) , who ' s head of a medical malpractice insurance company; person: who; person: head of a medical malpractice insurance company; person: his; person: his insurance company executive colleagues; person: insurance company executive; location: the West