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: RIAA Website Although total worldwide album sales are not calculated by any single entity, as of 2004 several industry sources estimated Rush's total worldwide album sales at over 40 million units.

Total worldwide album sales are not calculated by any single entity. Rush's total worldwide album sales are at over 40 million units as of 2004.