1/2 a^{c0,a2}_{a0,a1} b^{c1}_{a3} c^{c4,a4}_{c2,c3} eta1^{a3}_{a2} gamma1^{a1}_{a4} a+(c2) a+(c3) a+(a0) a-(c4) a-(c1) a-(c0)
+1/2 a^{c0,a2}_{a0,a1} b^{c1}_{a3} c^{c4,a4}_{c2,c3} lambda2^{a1,a3}_{a2,a4} a+(c2) a+(c3) a+(a0) a-(c4) a-(c1) a-(c0)
+1/4 a^{c0,a3}_{a1,a2} b^{c1}_{a0} c^{c4,a4}_{c2,c3} lambda2^{a1,a2}_{a3,a4} a+(c2) a+(c3) a+(a0) a-(c4) a-(c1) a-(c0)