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