51.   Political upheaval in Europe.

52.   Political upheaval, like a move by China to force reunification with Taiwan, could throw markets into chaos.

53.   Safin grew up in Moscow during political upheaval, when tennis balls were considered a luxury item.

54.   Robert Janiszewski, the Hudson County executive, abruptly resigned Thursday, throwing into political upheaval a bastion of Democratic politics that has often been tarnished by scandal.

55.   Senior Congress Party officials who helped engineer the political upheaval in the Uttar Pradesh legislature were saying little on Monday about their motives.

56.   Russian oil companies stand to gain if political upheaval raises world oil prices or disrupts supplies from the Middle East, executives said.

57.   She wants to examine that pivotal year, looking at political upheavals here and abroad, world-shaking assassinations, the antiwar movement, and even space exploration.

58.   Since the Tokyo meeting, Japan has had three new prime ministers, a political upheaval hardly conducive to stable negotiations or to agreements with any guarantee of lasting.

59.   Since then, a series of unrelated political upheavals, including the Monica Lewinksy scandals here, have sapped Western leaders of much of their ability to act.

60.   Since then, villagers said, the political upheaval in Phnom Penh has had no effect on their lives.