Complex sentence: On August 28th, 2014, Six Flags New England announced Wicked Cyclone, a Rocky Mountain Construction Hybrid Rollercoaster, which is using the same structure as the Cyclone.
Split into simpler sentences: On August 28th, 2014, Six Flags New England announced Wicked Cyclone. A Rocky Mountain Construction Hybrid Rollercoaster using the same structure as the Cyclone.