1/2 a^{a1,a2}_{a0,a3} b^{a4,v0}_{c0,c2} c^{c2}_{c1} gamma1^{a3}_{a4} a+(c0) a+(c1) a+(a0) a-(v0) a-(a2) a-(a1)
+1/4 a^{a0,a3}_{a1,a2} b^{a4,v0}_{c0,c1} c^{c3}_{c2} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a+(c2) a-(v0) a-(a0) a-(c3)
-1/2 a^{a0,a3}_{a1,a2} b^{a4,v0}_{c0,c2} c^{c2}_{c1} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a-(v0) a-(a0)