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