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