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