7865
Equipping aircraft with missile countermeasure systems can protect the aircraft even when operating in areas where ground - based security measures are unavailable or infeasible to implement .
 vehicle: aircraft; vehicle: the aircraft; location: areas where ground - based security measures are unavailable or infeasible to implement; location: where; weapon: missile
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
 Entities: aircraft, the aircraft, areas where ground - based security measures are unavailable or infeasible to implement, where, missile 
Answer:
 vehicle: aircraft; vehicle: the aircraft; location: areas where ground - based security measures are unavailable or infeasible to implement; location: where; weapon: missile