1/2 a^{v1,v2}_{a1,v0} b^{c0}_{v2} c^{a3,a4}_{a0,a2} lambda2^{a1,a2}_{a3,a4} a+(a0) a+(v0) a-(v1) a-(c0)
-1/4 a^{v1,v2}_{a1,v0} b^{c0}_{v3} c^{a3,a4}_{a0,a2} lambda2^{a1,a2}_{a3,a4} a+(a0) a+(v0) a+(v3) a-(v2) a-(v1) a-(c0)
-1/2 a^{v1,v2}_{a3,v0} b^{c0}_{v2} c^{a2,a4}_{a0,a1} gamma1^{a3}_{a4} a+(a0) a+(a1) a+(v0) a-(v1) a-(a2) a-(c0)