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