-1/8 a^{c0,a0}_{v0,v1} b^{c2,c3}_{c1,a1} c^{a3,a4}_{c4,a2} lambda2^{a1,a2}_{a3,a4} a+(c1) a+(c4) a+(v0) a+(v1) a-(a0) a-(c3) a-(c2) a-(c0)
+1/4 a^{c0,a1}_{v0,v1} b^{c2,c3}_{c1,a2} c^{a0,a4}_{c4,a3} eta1^{a3}_{a1} gamma1^{a2}_{a4} a+(c1) a+(c4) a+(v0) a+(v1) a-(a0) a-(c3) a-(c2) a-(c0)
+1/4 a^{c0,a1}_{v0,v1} b^{c2,c3}_{c1,a2} c^{a0,a4}_{c4,a3} lambda2^{a2,a3}_{a1,a4} a+(c1) a+(c4) a+(v0) a+(v1) a-(a0) a-(c3) a-(c2) a-(c0)