Complex sentence: The "Colonist" was a general cargo and passenger schooner built in 1861 at Dumbarton Scotland by Denny & Rankine, which spent the nearly 30 years plying the Western Pacific based out of Sydney.
Split into simpler sentences: The "Colonist" was a general cargo and passenger schooner built in 1861 at Dumbarton Scotland by Denny & Rankine. It spent nearly 30 years plying the Western Pacific based out of Sydney.