-1/4 a^{v0}_{c0} b^{c1,c2}_{a1,v0} c^{a0,a2}_{c3,c4} gamma1^{a1}_{a2} a+(c0) a+(c3) a+(c4) a-(a0) a-(c2) a-(c1)
+1/4 a^{v0}_{c3} b^{c0,c3}_{a0,v0} c^{a1,a2}_{c1,c2} a+(c1) a+(c2) a+(a0) a-(a2) a-(a1) a-(c0)
+1/2 a^{v0}_{c3} b^{c0,c3}_{a1,v0} c^{a0,a2}_{c1,c2} gamma1^{a1}_{a2} a+(c1) a+(c2) a-(a0) a-(c0)
-1/2 a^{v0}_{c3} b^{c0,c3}_{a1,v1} c^{a0,a2}_{c1,c2} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(v1) a-(v0) a-(a0) a-(c0)