-1/2 a^{a0}_{c0} b^{c0}_{v0} c^{a3,v1}_{a1,a2} lambda2^{a1,a2}_{a0,a3} a+(v0) a-(v1)
-1/2 a^{a0}_{c0} b^{c1}_{v0} c^{a3,v1}_{a1,a2} lambda2^{a1,a2}_{a0,a3} a+(c0) a+(v0) a-(v1) a-(c1)
-a^{a2}_{c0} b^{c0}_{v0} c^{a1,v1}_{a0,a3} eta1^{a3}_{a2} a+(a0) a+(v0) a-(v1) a-(a1)