-1/4 a^{a0}_{v0} b^{c1,c2}_{c0,a1} c^{a3,a4}_{c3,a2} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c3) a+(v0) a-(a0) a-(c2) a-(c1)
+1/2 a^{a1}_{v0} b^{c1,c2}_{c0,a2} c^{a0,a4}_{c3,a3} eta1^{a3}_{a1} gamma1^{a2}_{a4} a+(c0) a+(c3) a+(v0) a-(a0) a-(c2) a-(c1)
+1/2 a^{a1}_{v0} b^{c1,c2}_{c0,a2} c^{a0,a4}_{c3,a3} lambda2^{a2,a3}_{a1,a4} a+(c0) a+(c3) a+(v0) a-(a0) a-(c2) a-(c1)