Complex sentence: The Irish Institute of Celebrants (IIOC), established in 2015, is a training institute for professional celebrants at Pembroke Hall, 38/39 Fitzwilliam Square Dublin 2.
Split into simpler sentences: The Irish Institute of Celebrants (IIOC) was set up in 2015. It is a training institute for professional celebrants at Pembroke Hall, 38/39 Fitzwilliam Square Dublin 2.