$\to \langle VPV{P}^{3}VPVPV\rangle \Delta E_2\Delta E_1$

(1)

$\to -\langle VPV{P}^{4}VPVPV\rangle {\left(\Delta E_1\right)}^3$

(1)

1 1 4 1

$S_1^3{S}_4=5\to -\langle VPVPV{P}^{2}VPV\rangle \Delta E_3$

(2)

$\to \langle VPVPV{P}^{3}VPV\rangle \Delta E_1\Delta E_2$

(1)

$\to \langle VPVPV{P}^{3}VPV\rangle \Delta E_2\Delta E_1$

(1)

$\to -\langle VPVPV{P}^{4}VPV\rangle {\left(\Delta E_1\right)}^3$

(1)

1 1 1 4

$S_1^3{S}_4=5\to -\langle VPVPVPV{P}^{2}V\rangle \Delta E_3$

(2)

$\to \langle VPVPVPV{P}^{3}V\rangle \Delta E_1\Delta E_2$

(1)

$\to \langle VPVPVPV{P}^{3}V\rangle \Delta E_2\Delta E_1$

(1)

$\to -\langle VPVPVPV{P}^{4}V\rangle {\left(\Delta E_1\right)}^3$

(1)