1/4 a^{}_{c0,c1,a0,a1} b^{a3,a4}_{c2,a2} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a+(c2) a+(a0)
-1/2 a^{}_{c0,c1,a0,a3} b^{a2,a4}_{c2,a1} gamma1^{a3}_{a4} a+(c0) a+(c1) a+(c2) a+(a0) a+(a1) a-(a2)
+1/4 a^{}_{c0,c1,a1,a2} b^{a3,a4}_{c2,a0} gamma1^{a2}_{a4} gamma1^{a1}_{a3} a+(c0) a+(c1) a+(c2) a+(a0)
+1/8 a^{}_{c0,c1,a1,a2} b^{a3,a4}_{c2,a0} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a+(c2) a+(a0)