Complex sentence: Brett Stalbaum is a Lecturer with Security of Employment at UCSD, who edits a number of wiki pages on the geography of the Anza-Borrego Desert State Park where he lives.
Split into simpler sentences: Brett Stalbaum is a Lecturer with Security of Employment at UCSD. He edits a number of wiki pages on the geography of the Anza-Borrego Desert State Park where he lives.