what type of literary device is " At night, he would watch a “single green light, minute and far away, that might have been at the end of a dock.”

In 2081, everyone is equal not only in the eyes of the law but in every way; nobody is smarter, more athletic, better looking, etc. than anyone else. hazel is of average intelligence, which means she can't think about anything except in short bursts, and george has an intelligence way above normal.