31.   Purim triggers bitter memories for Palestinian residents.

32.   They have argued that he snapped during a drunken, drug-induced rage after a sexual advance by Shepard triggered memories of a childhood homosexual assault.

33.   New ways had to be devised to treat such patients without triggering Holocaust memories, he said.

34.   The constitutional crisis has brought the army back on to the political stage in this country, triggering memories of the era of widespread military dictatorships on the continent.