-1/2 a^{a1,v0}_{c0,a0} b^{a2,a3}_{c1,c2} c^{c2}_{v0} a+(c0) a+(c1) a+(a0) a-(a3) a-(a2) a-(a1)
-a^{a0,v0}_{c0,a2} b^{a1,a3}_{c1,c2} c^{c2}_{v0} gamma1^{a2}_{a3} a+(c0) a+(c1) a-(a1) a-(a0)
-1/2 a^{a0,v0}_{c0,a2} b^{a1,a3}_{c1,c2} c^{c3}_{v0} gamma1^{a2}_{a3} a+(c0) a+(c1) a+(c2) a-(a1) a-(a0) a-(c3)
+a^{a0,v0}_{c0,a2} b^{a1,a3}_{c1,c2} c^{c2}_{v1} gamma1^{a2}_{a3} a+(c0) a+(c1) a+(v1) a-(v0) a-(a1) a-(a0)
-1/4 a^{a1,v0}_{c2,a0} b^{a2,a3}_{c0,c1} c^{c2}_{v0} a+(c0) a+(c1) a+(a0) a-(a3) a-(a2) a-(a1)
-1/2 a^{a0,v0}_{c2,a2} b^{a1,a3}_{c0,c1} c^{c2}_{v0} gamma1^{a2}_{a3} a+(c0) a+(c1) a-(a1) a-(a0)
+1/2 a^{a0,v0}_{c2,a2} b^{a1,a3}_{c0,c1} c^{c2}_{v1} gamma1^{a2}_{a3} a+(c0) a+(c1) a+(v1) a-(v0) a-(a1) a-(a0)