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