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