Complex sentence: Dr. Lecorpus treats Geraldine with the help of his brother, who wears a cloth over his face due to being disfigured and while Gina, John and Phil return to the village in the civilization, Brian and Stacey stay with the natives.
Split into simpler sentences: Dr. Lecorpus treats Geraldine with the help of his brother, who wears a cloth over his face due to being disfigured. While Gina, John and Phil return to the village in the civilization, Brian and Stacey stay with the natives.