-1/2 a^{a0,a1}_{c0,c1} b^{a3}_{a2} c^{c1}_{a4} eta1^{a4}_{a3} a+(c0) a+(a2) a-(a1) a-(a0)
+a^{a0,a1}_{c0,c1} b^{a3}_{a2} c^{c1}_{a4} eta1^{a4}_{a3} eta1^{a2}_{a1} a+(c0) a-(a0)
+a^{a0,a1}_{c0,c1} b^{a3}_{a2} c^{c1}_{a4} lambda2^{a2,a4}_{a1,a3} a+(c0) a-(a0)
-1/2 a^{a0,a1}_{c0,c1} b^{a3}_{a2} c^{c2}_{a4} eta1^{a4}_{a3} eta1^{a2}_{a1} a+(c0) a+(c1) a-(a0) a-(c2)
-1/2 a^{a0,a1}_{c0,c1} b^{a3}_{a2} c^{c2}_{a4} lambda2^{a2,a4}_{a1,a3} a+(c0) a+(c1) a-(a0) a-(c2)
+a^{a0,a3}_{c0,c1} b^{a2}_{a1} c^{c1}_{a4} eta1^{a4}_{a3} a+(c0) a+(a1) a-(a2) a-(a0)
-a^{a0,a3}_{c0,c1} b^{a1}_{a4} c^{c1}_{a2} eta1^{a4}_{a3} a+(c0) a+(a2) a-(a1) a-(a0)
+a^{a1,a2}_{c0,c1} b^{a0}_{a3} c^{c1}_{a4} eta1^{a4}_{a2} eta1^{a3}_{a1} a+(c0) a-(a0)
+1/2 a^{a1,a2}_{c0,c1} b^{a0}_{a3} c^{c1}_{a4} lambda2^{a3,a4}_{a1,a2} a+(c0) a-(a0)
-1/2 a^{a1,a2}_{c0,c1} b^{a0}_{a3} c^{c2}_{a4} eta1^{a4}_{a2} eta1^{a3}_{a1} a+(c0) a+(c1) a-(a0) a-(c2)
-1/4 a^{a1,a2}_{c0,c1} b^{a0}_{a3} c^{c2}_{a4} lambda2^{a3,a4}_{a1,a2} a+(c0) a+(c1) a-(a0) a-(c2)