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There are so many cars on the highway that I cannot recognize but I think there is a silver Audi RS6 C7 driving Away with 72 km/h and a dark grey BMW X5 driving right at a speed of 81 kilometers per hour
 color of vehicle: silver; brand of vehicle: Audi; vehicle model: RS6 C7; orientation of vehicle: Away; vehicle velocity: 72; color of vehicle: dark grey; brand of vehicle: BMW; vehicle model: X5; orientation of vehicle: right; vehicle velocity: 81 kilometers per hour
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: vehicle type, position of vehicle, color of vehicle, orientation of vehicle, vehicle velocity, vehicle range, brand of vehicle, vehicle model, SUV, hatchback, sports car, sedan, bus, truck, vintage car, coupe, roadster, estate car, motorcycle, MPV, van 
Text: {0} 
 Entities: silver, Audi, RS6 C7, Away, 72, dark grey, BMW, X5, right, 81 kilometers per hour 
Answer:
 color of vehicle: silver; brand of vehicle: Audi; vehicle model: RS6 C7; orientation of vehicle: Away; vehicle velocity: 72; color of vehicle: dark grey; brand of vehicle: BMW; vehicle model: X5; orientation of vehicle: right; vehicle velocity: 81 kilometers per hour