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