1/288 a^{a1,a2,a6}_{a0} b^{}_{c0,c1,c2,c3} c^{a3,a4,a5}_{a7} eta1^{a7}_{a6} a+(c0) a+(c1) a+(c2) a+(c3) a+(a0) a-(a5) a-(a4) a-(a3) a-(a2) a-(a1)
+1/288 a^{a0,a1,a2}_{a4} b^{}_{c0,c1,c2,c3} c^{a3,a6,a7}_{a5} lambda2^{a4,a5}_{a6,a7} a+(c0) a+(c1) a+(c2) a+(c3) a-(a3) a-(a2) a-(a1) a-(a0)
+1/96 a^{a0,a1,a5}_{a4} b^{}_{c0,c1,c2,c3} c^{a2,a3,a7}_{a6} eta1^{a6}_{a5} gamma1^{a4}_{a7} a+(c0) a+(c1) a+(c2) a+(c3) a-(a3) a-(a2) a-(a1) a-(a0)
+1/96 a^{a0,a1,a5}_{a4} b^{}_{c0,c1,c2,c3} c^{a2,a3,a7}_{a6} lambda2^{a4,a6}_{a5,a7} a+(c0) a+(c1) a+(c2) a+(c3) a-(a3) a-(a2) a-(a1) a-(a0)
+1/288 a^{a0,a5,a6}_{a4} b^{}_{c0,c1,c2,c3} c^{a1,a2,a3}_{a7} lambda2^{a4,a7}_{a5,a6} a+(c0) a+(c1) a+(c2) a+(c3) a-(a3) a-(a2) a-(a1) a-(a0)
-1/288 a^{a0,a1,a2}_{a6} b^{}_{c0,c1,c2,c3} c^{a4,a5,a7}_{a3} gamma1^{a6}_{a7} a+(c0) a+(c1) a+(c2) a+(c3) a+(a3) a-(a5) a-(a4) a-(a2) a-(a1) a-(a0)