1/4 a^{c0,c1}_{a1} b^{a0,a3,a4}_{a2} lambda2^{a1,a2}_{a3,a4} a-(a0) a-(c1) a-(c0)
-1/4 a^{c0,c1}_{a3} b^{a1,a2,a4}_{a0} gamma1^{a3}_{a4} a+(a0) a-(a2) a-(a1) a-(c1) a-(c0)