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.

the official municipality key , formerly also known as the official municipality characteristic number or municipality code number , is a number sequence for the identification of politically independent municipalities or unincorporated areas.
formerly known as the official municipality chaacteristic number or municipality code number , the official municipality key is a number that identifies municipalities or unincorporated areas.