79540
Similar to the Boeing 737 , the main landing gear rotates into the belly of the aircraft when in flight , with partial doors covering the legs , and the sides of the tires remaining exposed .
 vehicle: Boeing 737
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: Boeing 737 
Answer:
 vehicle: Boeing 737