1/2 a^{c0,v0}_{c3,a2} b^{c1,a3}_{a0,a1} c^{c3}_{c2} gamma1^{a2}_{a3} a+(c2) a+(a0) a+(a1) a-(v0) a-(c1) a-(c0)
-1/2 a^{c0,v0}_{c3,a2} b^{c3,a3}_{a0,a1} c^{c2}_{c1} gamma1^{a2}_{a3} a+(c1) a+(a0) a+(a1) a-(v0) a-(c2) a-(c0)