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