-a^{c0,a1}_{a0,v0} b^{c1,v2}_{a2,v1} c^{a3}_{c2} eta1^{a2}_{a1} gamma1^{a0}_{a3} a+(c2) a+(v0) a+(v1) a-(v2) a-(c1) a-(c0)
-a^{c0,a1}_{a0,v0} b^{c1,v2}_{a2,v1} c^{a3}_{c2} lambda2^{a0,a2}_{a1,a3} a+(c2) a+(v0) a+(v1) a-(v2) a-(c1) a-(c0)