-1/4 a^{v2}_{a0} b^{v0,v1}_{a3,v2} c^{c0,a4}_{a1,a2} gamma1^{a3}_{a4} a+(a0) a+(a1) a+(a2) a-(v1) a-(v0) a-(c0)
+1/4 a^{v2}_{a3} b^{v0,v1}_{a0,v2} c^{c0,a4}_{a1,a2} gamma1^{a3}_{a4} a+(a0) a+(a1) a+(a2) a-(v1) a-(v0) a-(c0)