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