Definition: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
Input: George Walker Bush (; born July 6, 1946) served as the 43rd President of the United States from 2001 to 2009.

George Walker Bush was the 43rd President of the United States. He served in office from 2001 to 2009.