Complex sentence: About one-fourth of the Kokee Ditch supply has irrigated the highland cane fields below Pu'u Opae reservoir on Niu Ridge, and the balance has irrigated the highland fields east of Koke'e Road.
Split into simpler sentences: About one-fourth of the Kokee Ditch supply has irrigated the highland cane fields below Pu'u Opae reservoir on Niu Ridge. The balance irrigated the highland fields east of Koke'e Road.