-1/4 a^{a0}_{c0} b^{a1,a3}_{c1,c2} c^{a2,a6}_{a4,a5} lambda2^{a4,a5}_{a3,a6} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)
+1/8 a^{a0}_{c0} b^{a3,a4}_{c1,c2} c^{a1,a2}_{a5,a6} eta1^{a6}_{a4} eta1^{a5}_{a3} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)
+1/16 a^{a0}_{c0} b^{a3,a4}_{c1,c2} c^{a1,a2}_{a5,a6} lambda2^{a5,a6}_{a3,a4} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)
-1/8 a^{a3}_{c0} b^{a0,a1}_{c1,c2} c^{a2,a6}_{a4,a5} lambda2^{a4,a5}_{a3,a6} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)
-1/4 a^{a3}_{c0} b^{a0,a4}_{c1,c2} c^{a1,a2}_{a5,a6} eta1^{a6}_{a4} eta1^{a5}_{a3} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)
-1/8 a^{a3}_{c0} b^{a0,a4}_{c1,c2} c^{a1,a2}_{a5,a6} lambda2^{a5,a6}_{a3,a4} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)