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