1/8 a^{v0,v1}_{a0,a1} b^{c0,c1}_{c3,a3} c^{c3,a4}_{c2,a2} gamma1^{a3}_{a4} a+(c2) a+(a0) a+(a1) a+(a2) a-(v1) a-(v0) a-(c1) a-(c0)
-1/4 a^{v0,v1}_{a0,a3} b^{c0,c1}_{c3,a1} c^{c3,a4}_{c2,a2} gamma1^{a3}_{a4} a+(c2) a+(a0) a+(a1) a+(a2) a-(v1) a-(v0) a-(c1) a-(c0)