a^{v0}_{a0} b^{c1}_{c0} c^{c3,a1}_{c2,v0} gamma1^{a0}_{a1} a+(c0) a+(c2) a-(c3) a-(c1)
-a^{v0}_{a0} b^{c0}_{c2} c^{c2,a1}_{c1,v0} a+(c1) a+(a0) a-(a1) a-(c0)
-a^{v0}_{a0} b^{c0}_{c2} c^{c2,a1}_{c1,v0} gamma1^{a0}_{a1} a+(c1) a-(c0)
+a^{v0}_{a0} b^{c0}_{c2} c^{c2,a1}_{c1,v1} gamma1^{a0}_{a1} a+(c1) a+(v1) a-(v0) a-(c0)