4245
Regardless of Mother Nature delaying my flight from # DFW I still would have gotten home THREE hours later than expected due to other UNKNOWN flight delays . {@americanair@} it ’s your policy to provide a compensation . # ECB ># SDF took 12 hours !!!!! # unexcuseable
 location: DFW; corporation: americanair; corporation: ECB; corporation: SDF
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
 Entities: DFW, americanair, ECB, SDF 
Answer:
 location: DFW; corporation: americanair; corporation: ECB; corporation: SDF