a^{v0}_{c0} b^{c1,a0}_{a1,v0} c^{a2}_{c2} gamma1^{a1}_{a2} a+(c0) a+(c2) a-(a0) a-(c1)
+a^{v0}_{c1} b^{c1,a1}_{a0,v0} c^{a2}_{c0} a+(c0) a+(a0) a-(a2) a-(a1)
+a^{v0}_{c1} b^{c1,a0}_{a1,v0} c^{a2}_{c0} gamma1^{a1}_{a2} a+(c0) a-(a0)
-a^{v0}_{c1} b^{c1,a0}_{a1,v1} c^{a2}_{c0} gamma1^{a1}_{a2} a+(c0) a+(v1) a-(v0) a-(a0)