Input (grade 13): Since then, Ipswich Town remain undefeated at Portman Road in all European competitions, a total of 31 matches spanning 40 years, a record until it was surpassed by AZ Alkmaar in December 2007.
Output (grade 9): Since then, Ipswich Town remain undefeated at Portman Road in all European competitions. They have played a total of 31 matches over 40 years, a world record until it was beaten by AZ Alkmaar in December 2007.