-1/4 a^{c0,c1}_{a0,v0} b^{c2,a3}_{a1,a2} c^{c4,a4}_{c3,v1} lambda2^{a1,a2}_{a3,a4} a+(c3) a+(a0) a+(v0) a+(v1) a-(c4) a-(c2) a-(c1) a-(c0)
+1/2 a^{c0,c1}_{a1,v0} b^{c2,a3}_{a0,a2} c^{c4,a4}_{c3,v1} gamma1^{a2}_{a4} gamma1^{a1}_{a3} a+(c3) a+(a0) a+(v0) a+(v1) a-(c4) a-(c2) a-(c1) a-(c0)
+1/2 a^{c0,c1}_{a1,v0} b^{c2,a3}_{a0,a2} c^{c4,a4}_{c3,v1} lambda2^{a1,a2}_{a3,a4} a+(c3) a+(a0) a+(v0) a+(v1) a-(c4) a-(c2) a-(c1) a-(c0)