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: Interethnic tensions resulted in a horrible massacre, in which most Armenians in the town of Shusha perished.

Tensions relating to ethnicity resulted in a massacre. In this massacre most Armenians living in Shusha perished.