Complex sentence: The capital town lies at Belopa, after Palopo became a municipality since 2006, when Luwu Regency was split into Palopo city, North Luwu Regency, and East Luwu Regency (with the residue remaining as the new Luwu Residency).
Split into simpler sentences: The capital town lies at Belopa after Palopo became a municipality since 2006. At that date, Luwu Regency was split into Palopo city, North Luwu Regency, and East Luwu Regency (with the residue remaining as the new Luwu Residency).