a^{v0}_{c0} b^{c0,v2}_{a1,v1} c^{a2}_{a0} gamma1^{a1}_{a2} a+(a0) a+(v1) a-(v2) a-(v0)
+a^{v1}_{c0} b^{c0,v0}_{a0,v1} c^{a2}_{a1} a+(a0) a+(a1) a-(v0) a-(a2)
+a^{v1}_{c0} b^{c0,v0}_{a1,v1} c^{a2}_{a0} gamma1^{a1}_{a2} a+(a0) a-(v0)
+a^{v1}_{c0} b^{c1,v0}_{a1,v1} c^{a2}_{a0} gamma1^{a1}_{a2} a+(c0) a+(a0) a-(v0) a-(c1)