-1/16 a^{c1,c2}_{c0,a1} b^{c3,c4}_{v0,v1} c^{a3,a4}_{a0,a2} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(a0) a+(v0) a+(v1) a-(c4) a-(c3) a-(c2) a-(c1)
+1/8 a^{c0,c1}_{c3,a1} b^{c2,c3}_{v0,v1} c^{a3,a4}_{a0,a2} lambda2^{a1,a2}_{a3,a4} a+(a0) a+(v0) a+(v1) a-(c2) a-(c1) a-(c0)
-1/8 a^{c0,c1}_{c3,a3} b^{c2,c3}_{v0,v1} c^{a2,a4}_{a0,a1} gamma1^{a3}_{a4} a+(a0) a+(a1) a+(v0) a+(v1) a-(a2) a-(c2) a-(c1) a-(c0)