Complex sentence: Outside Lisbon, the church and chapter house of the Convent of Christ at Tomar (early 16th century), with its large-scale windows surrounded with sculptured organic and twisted rope forms, is a major monument of the manueline style.
Split into simpler sentences: Outside Lisbon, the church and chapter house of the Convent of Christ at Tomar is a major manueline monument. In particular, the large window of the chapter house, with its sculptured organic and twisted rope forms, is a symbol of the manueline style.