original: together they had 18 children , of whom 11 survived to adulthood .
simplifications: together , they had eighteen children , although only eleven lived to become adults . together they had 18 children , of whom 11 survived to adulthood . they had 18 children , of whom 11 survived to adulthood . together they had 18 children , of whom 11 lived to adulthood . together they had 18 children , of whom 11 made it to adulthood . together they had 18 children , 11 of whom survived to adulthood . they had 18 children , 11 who survived to adulthood . they had 18 children together and 11 survived to adulthood .