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Let the clever boy help find out the silver Alfa Romeo 6C 1500 and reddish-orange BMW 640i in the Bottom
 color of vehicle: silver; brand of vehicle: Alfa Romeo; vehicle model: 6C 1500; color of vehicle: reddish-orange; brand of vehicle: BMW; vehicle model: 640i; position of vehicle: Bottom
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, Alfa Romeo, 6C 1500, reddish-orange, BMW, 640i, Bottom 
Answer:
 color of vehicle: silver; brand of vehicle: Alfa Romeo; vehicle model: 6C 1500; color of vehicle: reddish-orange; brand of vehicle: BMW; vehicle model: 640i; position of vehicle: Bottom