Joke: How many lights does the garbage truck have? Answer: 9 lights, lights, lights, lights, lights. What do you mean?

I think so, too. It's just a brain teaser or something. "Light, light, light, light, light, light" is the sound of the garbage truck horn. Anyone who has heard the garbage truck scream knows that its sound is terrible, just like "light, light, light, light, light". Here, I ask how much light is associated with this "light" sound. Surely the questioner must have been tortured by "lights, lights, lights, lights".