Complex sentence: Originally operated by the North Carolina Commission on Indian Affairs, the tribe assumed management of the center in 1990 and expanded it three years later to serve up to 35 children from newborn to five years of age.
Split into simpler sentences: Originally operated by the North Carolina Commission on Indian Affairs, the tribe assumed management of the center in 1990. Three years later they expanded it to serve up to 35 children from newborn to five years of age.