Complex sentence: Ganesh Sittampalam is a record holder being the youngest person to pass an A-level in 1988 when he was nine years and four months old and he graduated in July 1992 when he was only 13.
Split into simpler sentences: Ganesh Sittampalam is a record holder being the youngest person to pass an A-level in 1988 when he was nine years and four months old. He graduated in July 1992 when he was only 13.