Complex sentence: Mariano was born in the city of Lihue on the island of Kauai in Hawaii, but at the age of 4 relocated with her family to California, where she was raised in the city of Mission Viejo with her two older brothers.
Split into simpler sentences: Mariano was born in the city of Lihue on the island of Kauai in Hawaii. At the age of 4 Mariano relocated with her family to California, where she was raised in the city of Mission Viejo with her two older brothers.