11.   The preacher denies that he is gradually shedding the sharper edges of street militancy in building a political base.

12.   The protests so far have been largely peaceful, although some have a sharper edge.

13.   With the prospect that Bosnia might be without U.N. peacekeepers before long, the debate about the direction of U.S. policy there also took on a sharper edge.

14.   Showing her sharper edge, Clinton and her supporters have already begun to work Lazio over.