Complex sentence: Gelligroes Mill is a water powered corn mill in Pontllanfraith, Caerphilly county borough, south Wales, with an overshot wheel with a cast iron frame and wooden buckets.
Split into simpler sentences: Gelligroes Mill is a water powered corn mill in Pontllanfraith, Caerphilly county borough, south Wales. It features an overshot wheel with a cast iron frame and wooden buckets.