Complex sentence: In 1997, a memorial garden was erected in the village in memory of Donna Cooper, a local girl who died after being knocked over by a stolen car on January 6,1993, at the age of 13.
Split into simpler sentences: In 1997, a memorial garden was erected in the village in memory of Donna Cooper. Cooper died after being knocked over by a stolen car on 6 January 1993, at the age of 13.