system
disgusted: I saw this guy dump a pile of garbage from his truck on the freeway. It was so messed up and dangerous for other drivers.
human
I just recently witnessed this guy dump a pile of garbage from his truck on the freeway. 
gpt
garbage collection most important
human
It was very dangerous and really messed up of the guy to do something like that. Too bad police were not around!
gpt
all police not bad