1/48 a^{c1,a0}_{c0} b^{}_{c2,c3,c4,c5} c^{a3}_{a1,a2} lambda2^{a1,a2}_{a0,a3} a+(c0) a+(c2) a+(c3) a+(c4) a+(c5) a-(c1)
+1/24 a^{c1,a2}_{c0} b^{}_{c2,c3,c4,c5} c^{a1}_{a0,a3} eta1^{a3}_{a2} a+(c0) a+(c2) a+(c3) a+(c4) a+(c5) a+(a0) a-(a1) a-(c1)