Complex sentence: St Albans Cathedral (formerly St Albans Abbey, officially The Cathedral and Abbey Church of St Alban) is a Church of England cathedral church within St Albans, England., its nave is the longest of any cathedral in England.
Split into simpler sentences: St Albans Cathedral (formerly St Albans Abbey, officially The Cathedral and Abbey Church of St Alban) is a Church of England cathedral church within St Albans, England. At, its nave is the longest of any cathedral in England.