In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.

according to the fictional universe first established by slayer , the ' buffyverse , ' the term ' buffyverse ' is used amongst fans of buffy / angel online to describe the fictional universe established by buffy / angel.
the term buffyverse is used for fans of buffy / angel online to describe the fictional universe established by buffy / angel.