1/12 a^{}_{c0,a0,a1,a2} b^{c0,a5}_{a3,a4} a+(a0) a+(a1) a+(a2) a+(a3) a+(a4) a-(a5)
+1/4 a^{}_{c0,a0,a1,a4} b^{c0,a5}_{a2,a3} gamma1^{a4}_{a5} a+(a0) a+(a1) a+(a2) a+(a3)
+1/4 a^{}_{c0,a0,a1,a4} b^{c1,a5}_{a2,a3} gamma1^{a4}_{a5} a+(c0) a+(a0) a+(a1) a+(a2) a+(a3) a-(c1)