$$\begin{aligned} &&\left\langle \left( g_{-},Z_{-}^{\bot }\right) ^{-0}\gamma \left( X_{+}^{\prime },Y_{+}^{\prime \bot }\right) \otimes \left( g_{-},Z_{-}^{\bot }\right) ^{-0}\gamma \left( X_{+}^{\prime \prime },Y_{+}^{\prime \prime \bot }\right) ,\pi _{-}\left( g_{-},Z_{-}^{\bot }\right) \right\rangle \\ &=&\left( \left( X_{+}^{\prime },Y_{+}^{\prime \bot }\right) ,\pi _{-\left( g_{-},Z_{-}^{\bot }\right) }^{L}\left( X_{+}^{\prime \prime },Y_{+}^{\prime \prime \bot }\right) \right) _{\mathfrak{h}}\end{aligned}$$we get, in 