Input (grade 8): (He was a last-minute substitute for an indisposed singer.) He gave his first Lieder recital in Leipzig in the autumn of 1947 and followed it soon afterwards with a highly successful first concert at Berlin's Titania-Palast.
Output (grade 3): (He was a last-minute substitute for a singer who was ill/O.) He gave his first Lieder recital in Leipzig later that year.