Sentence:From the outset, the TV reporters started talking about two disasters: the natural [e1]disaster[/e1] which was caused by the [e2]hurricane[/e2] and the man-made disaster which happened in New Orleans, the blame for which was laid at the hands of George Bush.
 e1: disaster. 
 e2 : hurricane.
Answer: Cause-Effect(e2,e1)