-1/4 a^{c1}_{c0} b^{a2,v0}_{a0,a1} c^{c4,a3}_{c2,c3} lambda2^{a0,a1}_{a2,a3} a+(c0) a+(c2) a+(c3) a-(v0) a-(c4) a-(c1)
+1/4 a^{c0}_{c3} b^{a2,v0}_{a0,a1} c^{c3,a3}_{c1,c2} lambda2^{a0,a1}_{a2,a3} a+(c1) a+(c2) a-(v0) a-(c0)
-1/2 a^{c0}_{c3} b^{a1,v0}_{a0,a2} c^{c3,a3}_{c1,c2} gamma1^{a2}_{a3} a+(c1) a+(c2) a+(a0) a-(v0) a-(a1) a-(c0)