-1/8 a^{c2,c3}_{c0,c1} b^{c4}_{a0} c^{a2,a3}_{c5,a1} lambda2^{a0,a1}_{a2,a3} a+(c0) a+(c1) a+(c5) a-(c4) a-(c3) a-(c2)
+1/4 a^{c1,c2}_{c0,c4} b^{c4}_{a0} c^{a2,a3}_{c3,a1} lambda2^{a0,a1}_{a2,a3} a+(c0) a+(c3) a-(c2) a-(c1)
-1/2 a^{c1,c2}_{c0,c4} b^{c4}_{a2} c^{a1,a3}_{c3,a0} gamma1^{a2}_{a3} a+(c0) a+(c3) a+(a0) a-(a1) a-(c2) a-(c1)