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: Two tubes of amphetamines and a further empty tube were found in the rear pocket of his racing jersey.

Three tubes were found in the back pocket of his racing jersey.  Two contained amphetamines, and the third was empty.