Using indicator constraint with two variables. To announce, introduce, or direct attention to a list, a noun or noun phrase, a quotation, or an example/explanation. The appositive that follows the colon can be an amplifying word, phrase, or clause: "Harry," said Mabel, "umbrellas are about one thing: dry fur.". ", "Today's weapons are too destructive to use, so they stand poised and quiet; this is our strange climate, when arms are safer than no arms. Learn more about Stack Overflow the company, and our products. They caved in the roof of the underground. Donec a,