Complex sentence: The "Lion" class were a class of battlecruisers built by the British Royal Navy before World War I. Nicknamed the "Splendid Cats", the ships were a significant improvement over their predecessors of the in terms of speed, armament and armour.
Split into simpler sentences: The "Lion" class were a class of battlecruisers built by the British Royal Navy before World War I. They were nicknamed the "Splendid Cats". They were significant improvements over their predecessors of the in terms of speed, armament and armour.