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sources close to the investigation tell nbc news that singapore airlines flight 6 tried to take off on a runway closed for repairs .
 organization: nbc news; organization: singapore airlines; person: sources close to the investigation; facility: a runway closed for repairs; vehicle: singapore airlines flight 6
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: nbc news, singapore airlines, sources close to the investigation, a runway closed for repairs, singapore airlines flight 6 
Answer:
 organization: nbc news; organization: singapore airlines; person: sources close to the investigation; facility: a runway closed for repairs; vehicle: singapore airlines flight 6