Given the task definition and input, reply with output. 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.

they were then replaced by the 4th armored division in 1957 , which was redesignated as the 1st armored division in 1971 and moved to hindenburg kaserne in ansbach in 1972.
they were replaced in 1957 by the 4th armored , then in 1971 redesignated the 1st armored division and moved to hindenburg kaserne in ansbach in 1972.