-1/2 a^{a0}_{v0} b^{c0}_{a1} c^{a3,a4}_{a2,v1} lambda2^{a1,a2}_{a3,a4} a+(v0) a+(v1) a-(a0) a-(c0)
+a^{a1}_{v0} b^{c0}_{a2} c^{a0,a4}_{a3,v1} eta1^{a3}_{a1} gamma1^{a2}_{a4} a+(v0) a+(v1) a-(a0) a-(c0)
+a^{a1}_{v0} b^{c0}_{a2} c^{a0,a4}_{a3,v1} lambda2^{a2,a3}_{a1,a4} a+(v0) a+(v1) a-(a0) a-(c0)