1/48 a^{a1}_{} b^{}_{c0,c1,c2,c3} c^{a4}_{a0,a2,a3} lambda2^{a2,a3}_{a1,a4} a+(c0) a+(c1) a+(c2) a+(c3) a+(a0)
+1/48 a^{a3}_{} b^{}_{c0,c1,c2,c3} c^{a2}_{a0,a1,a4} eta1^{a4}_{a3} a+(c0) a+(c1) a+(c2) a+(c3) a+(a0) a+(a1) a-(a2)