-1/2 a^{v1}_{v0} b^{c0,a2}_{a0,a1} c^{c2,a3}_{c1,v1} lambda2^{a0,a1}_{a2,a3} a+(c1) a+(v0) a-(c2) a-(c0)
+1/2 a^{v1}_{v0} b^{c0,a2}_{a0,a1} c^{c2,a3}_{c1,v2} lambda2^{a0,a1}_{a2,a3} a+(c1) a+(v0) a+(v2) a-(v1) a-(c2) a-(c0)
+a^{v1}_{v0} b^{c0,a1}_{a0,a2} c^{c2,a3}_{c1,v1} gamma1^{a2}_{a3} a+(c1) a+(a0) a+(v0) a-(a1) a-(c2) a-(c0)