Complex sentence: The DAS Building bombing was a truck bomb attack in Bogotá, Colombia, at 7:30 am on December 6,1989, targeting the Administrative Department of Security (DAS) headquarters.
Split into simpler sentences: The DAS Building bombing was a truck bomb attack in Bogotá, Colombia, at 7:30 am on December 6,1989. The bomb targeted the Administrative Department of Security (DAS) headquarters.