1/2 a^{c0,v0}_{a0,a1} b^{a3,a4}_{c1,a2} c^{}_{} lambda2^{a1,a2}_{a3,a4} a+(c1) a+(a0) a-(v0) a-(c0)
+1/2 a^{c0,v0}_{a1,a2} b^{a3,a4}_{c1,a0} c^{}_{} gamma1^{a2}_{a4} gamma1^{a1}_{a3} a+(c1) a+(a0) a-(v0) a-(c0)
+1/4 a^{c0,v0}_{a1,a2} b^{a3,a4}_{c1,a0} c^{}_{} lambda2^{a1,a2}_{a3,a4} a+(c1) a+(a0) a-(v0) a-(c0)