-1/2 a^{v0}_{a0} b^{c0,a1}_{c3,v1} c^{c3,v2}_{c1,c2} gamma1^{a0}_{a1} a+(c1) a+(c2) a+(v1) a-(v2) a-(v0) a-(c0)
+1/2 a^{v1}_{a0} b^{c1,a1}_{c0,v1} c^{c4,v0}_{c2,c3} gamma1^{a0}_{a1} a+(c0) a+(c2) a+(c3) a-(v0) a-(c4) a-(c1)
+1/2 a^{v1}_{a0} b^{c0,a1}_{c3,v1} c^{c3,v0}_{c1,c2} a+(c1) a+(c2) a+(a0) a-(v0) a-(a1) a-(c0)
-1/2 a^{v1}_{a0} b^{c0,a1}_{c3,v1} c^{c3,v0}_{c1,c2} gamma1^{a0}_{a1} a+(c1) a+(c2) a-(v0) a-(c0)