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: the mountain range forms the border between both countries for 150 kilometers , extending from the western border of saxony to the elbe river.
Output:
the mountain range forms the border between both countries for 150 kilometers , running from the western border of saxony to the elbe river.