If red means to stop, yellow means to slow down, then green means to __?
user
If red means to stop, yellow means to slow down, then green would most likely mean to go or proceed. The colors red, yellow and green are mostly used in traffic lights where they are meant to prevent accidents. They will tell drivers when they are allowed to go ahead or when they must stop.
assistant
Could you come up with a creative solution that is completely different to the one you just provided?
user
Yes, Sure thing, here it is: 
if one looks in the circle of RGB he may notice that red and yellow are very close to each other and immediately after them comes the color green. So, if we'll look at the RGB circle as a speedometer that tells you how much to slow down, blue shall be the proceeding sign, and hence green may mean slow down but just a little. 
But of course, please notice that the creative solution I just gave you is not one you shall implement on the roads. In real life, green means proceeding on, and ignorance in this matter can cause a life danger, please obey the law.
assistant
Within your creative solution what would the colors Cyan, Violet, and Yellow represent? What would be an example of a life danger of implementing the color of Cyan on a signal at a four-way intersection where perpendicular traffic received a Violet?
user