-1/4 a^{c0}_{a0} b^{c3,v0}_{c1,c2} c^{a2,a3}_{a1,v0} lambda2^{a0,a1}_{a2,a3} a+(c1) a+(c2) a-(c3) a-(c0)
+1/4 a^{c0}_{a0} b^{c3,v0}_{c1,c2} c^{a2,a3}_{a1,v1} lambda2^{a0,a1}_{a2,a3} a+(c1) a+(c2) a+(v1) a-(v0) a-(c3) a-(c0)
+1/2 a^{c0}_{a2} b^{c3,v0}_{c1,c2} c^{a1,a3}_{a0,v0} gamma1^{a2}_{a3} a+(c1) a+(c2) a+(a0) a-(a1) a-(c3) a-(c0)