Complex sentence: The twins attended their first professional match at the age of two, when their father took them to a Brentford match at Griffin Park; from the age of four Alf took both boys to play football at a local park every afternoon.
Split into simpler sentences: The twins attended their first professional match at the age of two, when their father took them to a Brentford match at Griffin Park. From the age of four Alf took both boys to play football at a local park every afternoon.