Complex sentence: Cadbury Dairy Milk Caramel is a chocolate bar, that is made by Cadbury UK, that is sold in the United Kingdom and the Republic of Ireland.
Split into simpler sentences: Cadbury Dairy Milk Caramel is a chocolate bar that is part of the Cadbury Dairy Milk brand and is made by Cadbury UK. The bar is sold in the United Kingdom and the Republic of Ireland.