58146
Further investigation revealed that the accident aircraft had been parked overnight at Baotou Airport in cold weather , causing a layer of frost to form on its exterior .
 location: Baotou Airport
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Baotou Airport 
Answer:
 location: Baotou Airport