Complex sentence: Her secondary armament consisted of four six-inch guns, also in single gun turrets, two of which superfired over the 9.2-inch turrets and the others were positioned on each side of the superstructure.
Split into simpler sentences: Her secondary armament consisted of four six-inch guns, also in single-gun turrets, two of which superfired over the 9.2-inch turrets. The other two were positioned on each side of the superstructure.