81.   Political rivalries run deep, and the economy would need huge doses of international aid.

82.   Political rivalry is believed to be the cause of the attack.

83.   Political rivalry is suspected to be the cause of the attack, PTI said.

84.   Previous theories on his killing have centered on U.S. involvement, or political rivalries within Congo.

85.   Residents were reluctant to identify the victims and to talk to police, and initially blamed the killings on political rivalries.

86.   The event has often been overshadowed by disturbances sparked by political rivalries and by tragedies.

87.   The French unions, once united in a force that could shut down the country, failed to march together again this year amid political rivalries.

88.   The hajj has often been overshadowed by disturbances sparked by political rivalries and by tragedies.

89.   The hajj has often been overshadowed by tragedies and disturbances sparked by political rivalries.

90.   The event has often been marred by disturbances sparked by political rivalries and by tragedies.