1/4 a^{c0,a0}_{a1,a2} b^{}_{} c^{a3,a4}_{v0,v1} gamma1^{a2}_{a4} gamma1^{a1}_{a3} a+(v0) a+(v1) a-(a0) a-(c0)
+1/8 a^{c0,a0}_{a1,a2} b^{}_{} c^{a3,a4}_{v0,v1} lambda2^{a1,a2}_{a3,a4} a+(v0) a+(v1) a-(a0) a-(c0)
-1/4 a^{c0,a3}_{a1,a2} b^{}_{} c^{a0,a4}_{v0,v1} lambda2^{a1,a2}_{a3,a4} a+(v0) a+(v1) a-(a0) a-(c0)