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