-1/2 a^{c0,a0}_{c5,a1} b^{c3,c5}_{c1,c2} c^{a2,v1}_{c4,v0} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(c4) a+(v0) a-(v1) a-(a0) a-(c3) a-(c0)