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still , delta said it was forced to cancel 5 % of its flights today , because some pilots refused overtime .
 organization: delta; organization: it; organization: its; person: some pilots
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
 Entities: delta, it, its, some pilots 
Answer:
 organization: delta; organization: it; organization: its; person: some pilots