21.   The two sides have already exchanged charges in radio commercials.

22.   The two sides will exchange liaison offices, a first step toward U.S. diplomatic recognition of North Korea.

23.   The two sides will exchange letters outlining the new regime today, he said.

24.   The two sides will exchange letters outlining the new regime today, the U.S. official said.

25.   Under the agreement, the two sides will exchange a variety of news, lifestyle, light entertainment and sports programs.

26.   A few hours later, the two sides exchanged gunfire.

27.   A negotiator for the government, Navin Gooneratne, said both sides must exchange more documents before the agreement can be finalized.

28.   Abkhazian ships resisted the Russian attempts, and the two sides exchanged warning shots.

29.   After the sinking, the two sides exchanged fire, Bacon said.

30.   An informal cease-fire held in the southwestern village of Bamut, scene of some of the heaviest recent fighting, while the two sides exchanged dead and prisoners.