Complex sentence: On October 25 1918, the SS "Princess Sophia" sank on Vanderbilt Reef near Juneau, Alaska, all 343 passengers died in the worst maritime disaster in history of the Pacific Northwest.
Split into simpler sentences: On October 25 1918, it sank on Vanderbilt Reef near Juneau, Alaska. All 343 passengers died in the worst maritime disaster in history of the Pacific Northwest.