-1/4 a^{}_{a0,a2,v0,v1} b^{a4,a5}_{a1,a3} lambda2^{a2,a3}_{a4,a5} a+(a0) a+(a1) a+(v0) a+(v1)
+1/4 a^{}_{a0,a4,v0,v1} b^{a3,a5}_{a1,a2} gamma1^{a4}_{a5} a+(a0) a+(a1) a+(a2) a+(v0) a+(v1) a-(a3)
+1/8 a^{}_{a2,a3,v0,v1} b^{a4,a5}_{a0,a1} gamma1^{a3}_{a5} gamma1^{a2}_{a4} a+(a0) a+(a1) a+(v0) a+(v1)
+1/16 a^{}_{a2,a3,v0,v1} b^{a4,a5}_{a0,a1} lambda2^{a2,a3}_{a4,a5} a+(a0) a+(a1) a+(v0) a+(v1)