of the six terms of equation . The first term is $$\label{eq1}
\begin{array}{l}
\vphantom{\Big(}
\displaystyle{
H^{(L)}(\lambda)(z_2,z_1)
i_{z_2}(z_2-z_3-\mu-\partial)^{-1}
L(z_3)
} \\
\vphantom{\Big(}
\displaystyle{
= i_{z_1}(z_1-z_2-x)^{-1}
i_{z_2}(z_2-z_3-y)^{-1}
\Big(
L(z_1)
\big(\big|_{x=\lambda+\partial}L(z_2)\big)
\big(\big|_{y=\mu+\partial}L(z_3)\big) 
} \\
\vphantom{\Big(}
\displaystyle{
-L(z_2+x)
\big(\big|_{x=\lambda+\partial}L^*(-z_1+\lambda)\big)
\big(\big|_{y=\mu+\partial}L(z_3)\big)
\Big)
\,,}
\end{array}$$ the second term is $$\label{eq2}
\begin{array}{l}
\displaystyle{
H^{(L)}(\lambda)(z_3+\mu+\partial,z_1)
i_{z_2}(z_2-z_3-\mu-\partial)^{-1}
L^*(-z_2+\mu)
} \\
\vphantom{\Big(}
\displaystyle{
=i_{z_1}(z_1-z_3-x-y)^{-1}
i_{z_2}(z_2-z_3-y)^{-1}
\times
} \\
\vphantom{\Big(}
\displaystyle{
\times\Big(
L(z_1)
\big(\big|_{x=\lambda+\partial}L(z_3+y)\big)
\big(\big|_{y=\mu+\partial}L^*(-z_2+\mu)\big)
} \\
\vphantom{\Big(}
\displaystyle{
-L(z_3+x+y)
\big(\big|_{x=\lambda+\partial}L^*(-z_1+\lambda)\big)
\big(\big|_{y=\mu+\partial}L^*(-z_2+\mu)\big)
\Big)
\,,}
\end{array}$$ the third term is $$\label{eq3}
\begin{array}{l}
\displaystyle{
L(z_1)
i_{z_1}(z_1-z_3-\lambda-\mu-\partial)^{-1}
H^{(L)}(\mu)(z_3,z_2)
} \\
\vphantom{\Big(}
\displaystyle{
=i_{z_1}(z_1\!-z_3\!-\!x\!-\!y)^{-1}
i_{z_2}(z_2-z_3-y)^{-1}
\Big(
L(z_1)
\big(\big|_{x=\lambda+\partial}L(z_2)\big)
\big(\big|_{y=\mu+\partial}L(z_3)\big)
} \\
\vphantom{\Big(}
\displaystyle{
-L(z_1)
\big(\big|_{x=\lambda+\partial}L(z_3+y)\big)
\big(\big|_{y=\mu+\partial}L^*(-z_2+\mu)\big)
\Big)
\,,}
\end{array}$$ the fourth term is $$\label{eq4}
\begin{array}{l}
\displaystyle{
L(z_3+\lambda+\mu+\partial)
i_{z_1}(z_1-z_3-\lambda-\mu-\partial)^{-1}
\Big(\Big|_{x=\lambda+\mu+\partial}
H^{(L)}(\mu)(z_1-x,z_2)
\Big)
} \\
\vphantom{\Big(}
\displaystyle{
=
i_{z_1}(z_1-z_3-x-y)^{-1}
i_{z_2}(z_1-z_2-x)^{-1}
L(z_3+x+y)
} \\
\vphantom{\Big(}
\displaystyle{
\Big(
-
\big(\big|_{x=\lambda+\partial}L(z_2)\big)
\big(\big|_{y=\mu+\partial}i_{z_1}L(z_1-x-y)\big)
} \\
\vphantom{\Big(}
\displaystyle{
+
\big(\big|_{x=\lambda+\partial}L^*(-z_1+\lambda)\big)
\big(\big|_{y=\mu+\partial}L^*(-z_2+\mu)\big)
\Big)
\,,}
\end{array}$$ the fifth term is $$\label{eq5}
\begin{array}{l}
\displaystyle{
H^{(L)}(\lambda+\mu+\partial)(z_3,z_1)
i_{z_1}(z_1-z_2-\lambda-\partial)^{-1}
L(z_2)
} \\
\vphantom{\Big(}
\displaystyle{
=
i_{z_1}(z_1-z_3-x-y)^{-1}
i_{z_1}(z_1-z_2-x)^{-1}
\Big(
L(z_1)
\big(\big|_{x=\lambda+\partial}L(z_2)\big)
\big(\big|_{y=\mu+\partial}L(z_3)\big)
} \\
\vphantom{\Big(}
\displaystyle{
-L(z_3+x+y)
\big(\big|_{x=\lambda+\partial}L(z_2)\big)
\big(\big|_{y=\mu+\partial}i_{z_1}L(z_1-x-y)\big)
\Big)
\,,}
\end{array}$$ and the last term is $$\label{eq6}
\begin{array}{l}
\displaystyle{
H^{(L)}(\lambda+\mu+\partial)(z_3,z_2+\lambda+\partial)
i_{z_1}(z_1-z_2-\lambda-\partial)^{-1}L^*(-z_1+\lambda)
} \\
\vphantom{\Big(}
\displaystyle{
= i_{z_1}(z_1-z_2-x)^{-1} i_{z_2}(z_2-z_3-y)^{-1}
\Big(
L(z_2+x)
\big(\big|_{x=\lambda+\partial}L^*(-z_1+\lambda)\big)
\times
} \\
\vphantom{\Big(}
\displaystyle{
\times
\big(\big|_{y=\mu+\partial}L(z_3)\big)
