Complex sentence: HMS "Phaeton" was a 38-gun, fifth-rate frigate of the "Minerva" class of the Royal Navy, most noted for her intrusion into Nagasaki harbour in 1808.
Split into simpler sentences: HMS "Phaeton" was a 38-gun, "Minerva"-class fifth rate of the Royal Navy. This frigate was most noted for her intrusion into Nagasaki harbour in 1808.