Complex sentence: USS "Antrim" (FFG-20), twelfth ship of the "Oliver Hazard Perry" class of guided-missile frigates, was named for Rear Admiral Richard Nott Antrim (1907--1969).
Split into simpler sentences: USS "Antrim" (FFG-20) was the twelfth ship of the "Oliver Hazard Perry" class of guided-missile frigates. She was named for Rear Admiral Richard Nott Antrim (1907--1969).