1/4 a^{v0,v1}_{c0,c5} b^{c2,c5}_{c1,a1} c^{a0,a2}_{c3,c4} gamma1^{a1}_{a2} a+(c0) a+(c1) a+(c3) a+(c4) a-(v1) a-(v0) a-(a0) a-(c2)
+1/16 a^{v0,v1}_{c3,c4} b^{c3,c4}_{c0,a0} c^{a1,a2}_{c1,c2} a+(c0) a+(c1) a+(c2) a+(a0) a-(v1) a-(v0) a-(a2) a-(a1)
+1/8 a^{v0,v1}_{c3,c4} b^{c3,c4}_{c0,a1} c^{a0,a2}_{c1,c2} gamma1^{a1}_{a2} a+(c0) a+(c1) a+(c2) a-(v1) a-(v0) a-(a0)