1/12 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c3} c^{c1,c2,c3}_{a3} a+(c0) a+(a0) a+(a3) a-(a2) a-(a1)
-1/6 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c3} c^{c1,c2,c3}_{a3} eta1^{a3}_{a2} a+(c0) a+(a0) a-(a1)
+1/12 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c3} c^{c1,c2,c3}_{a3} lambda2^{a0,a3}_{a1,a2} a+(c0)
-1/144 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c3} c^{c4,c5,c6}_{a3} eta1^{a3}_{a2} a+(c0) a+(c1) a+(c2) a+(c3) a+(a0) a-(a1) a-(c6) a-(c5) a-(c4)
+1/288 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c3} c^{c4,c5,c6}_{a3} lambda2^{a0,a3}_{a1,a2} a+(c0) a+(c1) a+(c2) a+(c3) a-(c6) a-(c5) a-(c4)
+1/24 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c5} c^{c3,c4,c5}_{a3} a+(c0) a+(c1) a+(c2) a+(a0) a+(a3) a-(a2) a-(a1) a-(c4) a-(c3)
-1/12 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c5} c^{c3,c4,c5}_{a3} eta1^{a3}_{a2} a+(c0) a+(c1) a+(c2) a+(a0) a-(a1) a-(c4) a-(c3)
+1/24 a^{a1,a2}_{a0} b^{}_{c0,c1,c2,c5} c^{c3,c4,c5}_{a3} lambda2^{a0,a3}_{a1,a2} a+(c0) a+(c1) a+(c2) a-(c4) a-(c3)
+1/8 a^{a1,a2}_{a0} b^{}_{c0,c1,c3,c4} c^{c2,c3,c4}_{a3} a+(c0) a+(c1) a+(a0) a+(a3) a-(a2) a-(a1) a-(c2)
-1/4 a^{a1,a2}_{a0} b^{}_{c0,c1,c3,c4} c^{c2,c3,c4}_{a3} eta1^{a3}_{a2} a+(c0) a+(c1) a+(a0) a-(a1) a-(c2)
+1/8 a^{a1,a2}_{a0} b^{}_{c0,c1,c3,c4} c^{c2,c3,c4}_{a3} lambda2^{a0,a3}_{a1,a2} a+(c0) a+(c1) a-(c2)