1/4 a^{c0,a0}_{a1,a2} b^{a3,a4}_{c1,c2} c^{}_{} gamma1^{a2}_{a4} gamma1^{a1}_{a3} a+(c1) a+(c2) a-(a0) a-(c0)
+1/8 a^{c0,a0}_{a1,a2} b^{a3,a4}_{c1,c2} c^{}_{} lambda2^{a1,a2}_{a3,a4} a+(c1) a+(c2) a-(a0) a-(c0)
-1/4 a^{c0,a3}_{a1,a2} b^{a0,a4}_{c1,c2} c^{}_{} lambda2^{a1,a2}_{a3,a4} a+(c1) a+(c2) a-(a0) a-(c0)