1/2 a^{v0}_{a0} b^{c1,a1}_{c0,c5} c^{c4,c5}_{c2,c3} gamma1^{a0}_{a1} a+(c0) a+(c2) a+(c3) a-(v0) a-(c4) a-(c1)
+1/4 a^{v0}_{a0} b^{c0,a1}_{c3,c4} c^{c3,c4}_{c1,c2} a+(c1) a+(c2) a+(a0) a-(v0) a-(a1) a-(c0)
-1/4 a^{v0}_{a0} b^{c0,a1}_{c3,c4} c^{c3,c4}_{c1,c2} gamma1^{a0}_{a1} a+(c1) a+(c2) a-(v0) a-(c0)