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