Complex sentence: The trouble broke out after a local black woman died of heart failure during a police search of her home, and took place against a backdrop of unrest in several English cities and a breakdown of relations between the police and black communities.
Split into simpler sentences: The trouble broke out after a local black woman died of heart failure during a police search of her home. It took place against a backdrop of unrest in several English cities and a breakdown of relations between the police and black communities.