Complex sentence: USS "Greenfish" (SS-351), a "Balao"-class submarine, was a ship of the United States Navy named for the greenfish, one of various labroid fishes, Florida bluefish or ladyfish.
Split into simpler sentences: USS "Greenfish" (SS-351) was a "Balao"-class submarine of the United States Navy. It was named for the greenfish, one of various labroid fishes, Florida bluefish or ladyfish.