1/36 a^{c0}_{a0,a1,a2} b^{}_{c1,c2,c3,c4} c^{c4,a3}_{} a+(c1) a+(c2) a+(c3) a+(a0) a+(a1) a+(a2) a-(a3) a-(c0)
+1/12 a^{c0}_{a0,a1,a2} b^{}_{c1,c2,c3,c4} c^{c4,a3}_{} gamma1^{a2}_{a3} a+(c1) a+(c2) a+(c3) a+(a0) a+(a1) a-(c0)
+1/48 a^{c0}_{a0,a1,a2} b^{}_{c1,c2,c3,c4} c^{c5,a3}_{} gamma1^{a2}_{a3} a+(c1) a+(c2) a+(c3) a+(c4) a+(a0) a+(a1) a-(c5) a-(c0)