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