18506
There are so many cars on the highway that I cannot recognize but I think there is a Black Dongfeng Mengshi driving this-way with 28 km/h and a grey Honda RC two one one V driving this way at a speed of 69 kilometers per hour
 Black, Dongfeng, Mengshi, this-way, 28, grey, Honda, RC two one one V, this way, 69 kilometers per hour
Please list all entity words in the text that fit the category. Output format is "word1, 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} 
Answer:
 Black, Dongfeng, Mengshi, this-way, 28, grey, Honda, RC two one one V, this way, 69 kilometers per hour