Complex sentence: The local theatre Amharclann Ghaoth Dobhair was constructed in 1961, however, a local theatre group known as "Aisteoirí Ghaoth Dobhair" (meaning'Gweedore's actors') had established themselves in 1932.
Split into simpler sentences: The local theatre Amharclann Ghaoth Dobhair was constructed in 1961. A local theatre group known as "Aisteoirí Ghaoth Dobhair" ('actors of Gweedore') was established in 1932.