 &=& -\bigl(\,{\cal \L\/}_u\,\vartheta ^\alpha\wedge\Sigma ^{\rm undef}_\alpha \bigr)_{\bot} +R_{\bot}^{\alpha\beta}\wedge{\tau _{\alpha\beta}}_{\bot} +E\wedge j\nonumber\\ &&-p\,{\it l}_u\overline{\eta}+E\wedge{\it l}_u P +B\wedge{\it l}_u M \nonumber\\ &&-T_{\bot}^\alpha\wedge{\cal \L\/}_u P_\alpha +\underline{T}^\alpha\wedge{\cal \L\/}_u M_\alpha\nonumber\\ &&-R_{\bot}^{\alpha\beta}\wedge{\cal \L\/}_u P_{\alpha\beta} +\underline{R}^{\alpha\beta}\wedge{\cal \L\/}_u M_{\alpha\beta}\