-1/2 a^{c0}_{a1,v0} b^{a0,a3,a4}_{a2} lambda2^{a1,a2}_{a3,a4} a+(v0) a-(a0) a-(c0)
-1/2 a^{c0}_{a3,v0} b^{a1,a2,a4}_{a0} gamma1^{a3}_{a4} a+(a0) a+(v0) a-(a2) a-(a1) a-(c0)