-1/2 a^{v0}_{a1} b^{a3,a4}_{a0,a2} c^{c1,v2}_{c0,v1} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(a0) a+(v1) a-(v2) a-(v0) a-(c1)
-1/2 a^{v1}_{a1} b^{a3,a4}_{a0,a2} c^{c1,v0}_{c0,v1} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(a0) a-(v0) a-(c1)
-1/2 a^{v1}_{a3} b^{a2,a4}_{a0,a1} c^{c1,v0}_{c0,v1} gamma1^{a3}_{a4} a+(c0) a+(a0) a+(a1) a-(v0) a-(a2) a-(c1)