-a^{c1,v2}_{c0,a0} b^{a1}_{v0} c^{v1}_{v2} gamma1^{a0}_{a1} a+(c0) a+(v0) a-(v1) a-(c1)
+a^{c1,v2}_{c0,a0} b^{a1}_{v2} c^{v1}_{v0} gamma1^{a0}_{a1} a+(c0) a+(v0) a-(v1) a-(c1)