Complex sentence: The Terminal Event Management Policy (TEMP) is an official policy of Wikipedia detailing the procedures to be followed to safeguard the content of the encyclopedia in the event of a non-localized event that would render the continuation of Wikipedia in its current form untenable.
Split into simpler sentences: The Terminal Event Management Policy (TEMP) is an official policy of Wikipedia. The policy details the procedures to be followed to safeguard the content of the encyclopedia in the event of a non-localized event that would render the continuation of Wikipedia in its current form untenable.