1/4 a^{v1}_{v0} b^{c1,c2}_{c0,a0} c^{a2,a3}_{a1,v1} lambda2^{a0,a1}_{a2,a3} a+(c0) a+(v0) a-(c2) a-(c1)
-1/4 a^{v1}_{v0} b^{c1,c2}_{c0,a0} c^{a2,a3}_{a1,v2} lambda2^{a0,a1}_{a2,a3} a+(c0) a+(v0) a+(v2) a-(v1) a-(c2) a-(c1)
+1/2 a^{v1}_{v0} b^{c1,c2}_{c0,a2} c^{a1,a3}_{a0,v1} gamma1^{a2}_{a3} a+(c0) a+(a0) a+(v0) a-(a1) a-(c2) a-(c1)