Once again, the absolute term ''b'' = "black" is most felicitously depicted by way of its idempotent representation ‘''b''’ = ''b'', = "black that is ---", and thus it can be taken as a selective from the universe of discourse.
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Once again, it is convenient to represent the absolute term <math>\mathrm{b} = \text{black}\!</math> by means the corresponding idempotent rheme, <math>\mathrm{b,} = \text{black that is}\,\underline{~~~~}.</math> In this way it can be taken as a selective from the universe of discourse.