-a^{c0,a1,a3}_{a0} b^{c2,a2}_{c1,a4} eta1^{a4}_{a3} a+(c1) a+(a0) a-(a2) a-(a1) a-(c2) a-(c0)
-a^{c0,a0,a2}_{a1} b^{c2,a4}_{c1,a3} eta1^{a3}_{a2} gamma1^{a1}_{a4} a+(c1) a-(a0) a-(c2) a-(c0)
-a^{c0,a0,a2}_{a1} b^{c2,a4}_{c1,a3} lambda2^{a1,a3}_{a2,a4} a+(c1) a-(a0) a-(c2) a-(c0)
-1/2 a^{c0,a2,a3}_{a1} b^{c2,a0}_{c1,a4} lambda2^{a1,a4}_{a2,a3} a+(c1) a-(a0) a-(c2) a-(c0)
+1/2 a^{c0,a0,a1}_{a3} b^{c2,a4}_{c1,a2} gamma1^{a3}_{a4} a+(c1) a+(a2) a-(a1) a-(a0) a-(c2) a-(c0)