Complex sentence: The lighthouse at Cape Reinga was built in 1941 and first lit during May of that year, replacing a lighthouse located on nearby Motuopao Island, which had been built 1879.
Split into simpler sentences: The lighthouse at Cape Reinga was built in 1941 and first lit during May of that year. The Cape Reinga lighthouse replaced a lighthouse located on nearby Motuopao Island, which had been built 1879.