51.   The frenzy of activity following the reported sighting illustrated the growing frustration of searchers, whose efforts have been slowed by dense fog, fresh snowfall and impassable terrain.

52.   The killings came amid growing Palestinian frustration over the stalled peace talks with Israel, and there was concern that the incident could trigger widespread violence.

53.   The move toward entertainment robots is partly a reflection of growing frustration over slow progress in industrial applications for robots despite tremendous research costs.

54.   The killings Tuesday came amid growing Palestinian frustration over the stalled peace talks with Israel, and there was concern that the incident could trigger widespread violence.

55.   The plan reflects the growing frustration many Okinawans feel toward the heavy U.S. military presence in their prefecture.

56.   The Palestinians, however, say the demonstrations are a reflection of growing frustration over stalled peace talks and deny that Arafat is behind the violence.

57.   The occupation underscores growing frustration over hundreds of unresolved land claims.

58.   The Palestinians have denied the accusations, and said the protests were a sign of growing frustration over the deadlocked Israeli-Palestinian peace talks.

59.   The Palestinians, however, say the demonstrations reflect growing frustration over stalled peace talks and deny that Palestinian leader Yasser Arafat is behind them.

60.   The sentence reflects growing frustration in Israel with Muslim militants blamed for acts of terrorism that have jeopardized Middle East peacemaking.