Complex sentence: The exterior entrance to the porch has a statue of the Virgin Mary with child in a central niche in the gable above the arch. She is surmounted by a dais and on the left hand side of the porch is a statue of the Virgin Mary.
Split into simpler sentences: The exterior entrance to the porch has a statue of the Virgin Mary with child in a central niche in the gable. On the left hand side of the porch is a statue of the Virgin Mary.