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: Geography The Caucasus Mountains are generally perceived to be a dividing line between Asia and Europe, and territories in Caucasia are alternately considered to be in one or both continents.

The Caucasus Mountains are seen as a divider between Asia and Europe. Places in Caucasia are sometimes considered to be part of one or both continents.