-1/4 a^{c0,v0}_{a0,a1} b^{c1,c2}_{a2,a3} c^{c4,a4}_{c3,v0} gamma1^{a3}_{a4} a+(c3) a+(a0) a+(a1) a+(a2) a-(c4) a-(c2) a-(c1) a-(c0)
-1/4 a^{c0,v0}_{a0,a3} b^{c1,c2}_{a1,a2} c^{c4,a4}_{c3,v0} gamma1^{a3}_{a4} a+(c3) a+(a0) a+(a1) a+(a2) a-(c4) a-(c2) a-(c1) a-(c0)