Complex sentence: The English Market, or properly Princes Street Market, is an important municipal food market in the centre of the city of Cork, Ireland, which is well supported locally and has in itself become a tourist attraction in the city centre.
Split into simpler sentences: The English Market, or properly Princes Street Market, is an important municipal food market in the centre of Cork, Ireland. The market is well supported locally and has in itself become a tourist attraction in the city centre.