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: Oen Siew Yock took over as principal in 2005 when Ong was transferred to Nan Chiau High School.

Oen Siew Yock took over as principal in 2005. Ong went to Nan Chiau High School.