Complex sentence: In 1991, the Silver Ferns that operated the daily between Wellington and Auckland were replaced by the locomotive-hauled Overlander, and new routes from Auckland were found for the Silver Ferns, the Geyserland Express to Rotorua and the Kaimai Express to Tauranga.
Split into simpler sentences: In 1991, the Silver Ferns that operated the daily services between Wellington and Auckland were replaced by the locomotive-hauled Overlander, and accordingly, new routes were found for the Silver Ferns. These were the Geyserland Express to Rotorua and the Kaimai Express to Tauranga.