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.
--------
Question: the alu is a fundamental building block of the central processing unit -lrb- cpu -rrb- of a computer , and even the simplest microprocessors contain one for purposes such as maintaining timers.

Answer: the arithmatic logic unit is a basic building block of the central processing unit of a computer , and even the most simple microprocessors have one for uses such as maintaining timers.


Question: demographics the population of the city is now largely made up of the descendants of laborers who were hired for labor from india in the 19th century.

Answer: -lrb- information about people / combinations of different kinds of people -rrb- the population of the city is now mostly made up of the descendants of laborers who were hired for labor from india in the 19th centu.


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

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