1/4 a^{c0,c1}_{a0,a1} b^{c3}_{c2} c^{a2,a3}_{c4,v0} gamma1^{a1}_{a3} gamma1^{a0}_{a2} a+(c2) a+(c4) a+(v0) a-(c3) a-(c1) a-(c0)
+1/8 a^{c0,c1}_{a0,a1} b^{c3}_{c2} c^{a2,a3}_{c4,v0} lambda2^{a0,a1}_{a2,a3} a+(c2) a+(c4) a+(v0) a-(c3) a-(c1) a-(c0)