AB′+AC′+BC′\mathrm{AB}^{\prime}+\mathrm{AC}^{\prime}+\mathrm{BC}^{\prime}AB′+AC′+BC′
AB′\mathrm{AB}^{\prime}AB′+AC+BC′+\mathrm{AC}+\mathrm{BC}^{\prime}+AC+BC′
A′BC′\mathrm{A}^{\prime}\mathrm{BC}^{\prime}A′BC′+AB′C+\mathrm{AB}^{\prime} \mathrm{C}+AB′C
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