1/2 a^{c0,a1}_{a0,v0} b^{c2,c3}_{c1,a2} c^{a3}_{c4} eta1^{a2}_{a1} gamma1^{a0}_{a3} a+(c1) a+(c4) a+(v0) a-(c3) a-(c2) a-(c0)
+1/2 a^{c0,a1}_{a0,v0} b^{c2,c3}_{c1,a2} c^{a3}_{c4} lambda2^{a0,a2}_{a1,a3} a+(c1) a+(c4) a+(v0) a-(c3) a-(c2) a-(c0)