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