Complex sentence: Vignola's urban front of the building is a sombre two storey facade, each storey given equal value, it has at its centre the triple rhythm of a richly detailed triumphal arch. Either side of the triumphal arch are symmetrical wings of two bays only.
Split into simpler sentences: Vignola's urban front of the building is a sombre two storey facade, each storey given equal value. It has at its centre the triple rhythm of a richly detailed triumphal arch flanked by symmetrical wings of two bays only.