1/24 a^{v0}_{c0,a0} b^{}_{c1,c2,c3,c4} c^{a1}_{v0} a+(c0) a+(c1) a+(c2) a+(c3) a+(c4) a+(a0) a-(a1)
+1/24 a^{v0}_{c0,a0} b^{}_{c1,c2,c3,c4} c^{a1}_{v0} gamma1^{a0}_{a1} a+(c0) a+(c1) a+(c2) a+(c3) a+(c4)
-1/24 a^{v0}_{c0,a0} b^{}_{c1,c2,c3,c4} c^{a1}_{v1} gamma1^{a0}_{a1} a+(c0) a+(c1) a+(c2) a+(c3) a+(c4) a+(v1) a-(v0)