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