-1/2 a^{v0}_{a0,a1} b^{a2,a3,v1}_{} gamma1^{a1}_{a3} gamma1^{a0}_{a2} a-(v1) a-(v0)
-1/4 a^{v0}_{a0,a1} b^{a2,a3,v1}_{} lambda2^{a0,a1}_{a2,a3} a-(v1) a-(v0)
-a^{v0}_{a0,a2} b^{a1,a3,v1}_{} gamma1^{a2}_{a3} a+(a0) a-(v1) a-(v0) a-(a1)