81.   The sides have exchanged accusations ranging from spying for China to extortion and visiting brothels, forcing the resignation of one top Chen adviser.

82.   The sides have exchanged messages through intermediaries.

83.   The two sides exchanged artillery and machine gun fire following the attack.

84.   The two sides exchanged fire as the rebels passed through a village and an open market, then crossed the main highway leading to Gisenyi, he said.

85.   The two sides have been exchanging prisoners of war over the past several days, signifying a growing thaw in relations between the two neighbors.

86.   The two sides have exchanged ministerial-level visits over the past year, leading to protests from Taipei.

87.   The sides have been exchanging messages through intermediaries.

88.   The two sides also exchanged small arms fire across their international border in the Kanachak sector, but Raina said no one was reported killed.

89.   The two sides exchanged gunfire into Friday morning, police told The Associated Press on condition of anonymity.

90.   The two sides exchanged ideas on security.