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