It played out as random-seeming moves framed by miscellaneous lighting effects, dramatically cast shadows, and some fooling around with a floor covering that got pulled up and sometimes over the dancers.

WSJ: Sylvie Guillem | Leaving Ballet Behind | Dance Review by

But tastiness applies, too, in the pleasantly disorienting effects of colors that appear to be distributed at random: bright or muted and warm or cool, all ajumble.

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Because each week's recipients were selected at random, the survey, taken as a whole, automatically negated the effects of other temporary influences on spending, such as changes in the stock market or car makers' cheap financing deals.

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