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