1/2 a^{c0,v1}_{a1,v0} b^{c2,v3}_{c1,v2} c^{a3,a4}_{a0,a2} lambda2^{a1,a2}_{a3,a4} a+(c1) a+(a0) a+(v0) a+(v2) a-(v3) a-(v1) a-(c2) a-(c0)
+1/2 a^{c0,v2}_{a1,v0} b^{c2,v1}_{c1,v2} c^{a3,a4}_{a0,a2} lambda2^{a1,a2}_{a3,a4} a+(c1) a+(a0) a+(v0) a-(v1) a-(c2) a-(c0)
-1/2 a^{c0,v2}_{a3,v0} b^{c2,v1}_{c1,v2} c^{a2,a4}_{a0,a1} gamma1^{a3}_{a4} a+(c1) a+(a0) a+(a1) a+(v0) a-(v1) a-(a2) a-(c2) a-(c0)