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