Instructions: 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.
Input: such near-perihelion oppositions occur on a regular cycle every twenty-two years , with the last occurring in 1991 and the next in 2013.
Output:
such near-perihelion oppositions occur on a regular cycle every twenty-two years , the last occurring in 1991 and the next in 2013.