Original sentence: The 1987 Hipercor bombing was a car bomb attack by the Basque separatist organisation ETA which occurred on 19 June 1987 at the Hipercor shopping centre on Avinguda Meridiana, Barcelona Spain which killed 21 people and injured 45 people
Edited sentence: The 1987 Hipercor bombing was a car bomb attack by the Basque separatist organisation ETA which occurred on 19 June 1987 at the Hipercor shopping centre on Avinguda Meridiana, Barcelona Spain.The bombing killed 21 people and injured 45 people