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