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