1/2 a^{c0,a2}_{a0,a1} b^{c1,v2}_{v0,v1} c^{c3,a4}_{c2,a3} eta1^{a3}_{a2} gamma1^{a1}_{a4} a+(c2) a+(a0) a+(v0) a+(v1) a-(v2) a-(c3) a-(c1) a-(c0)
+1/2 a^{c0,a2}_{a0,a1} b^{c1,v2}_{v0,v1} c^{c3,a4}_{c2,a3} lambda2^{a1,a3}_{a2,a4} a+(c2) a+(a0) a+(v0) a+(v1) a-(v2) a-(c3) a-(c1) a-(c0)
+1/4 a^{c0,a3}_{a1,a2} b^{c1,v2}_{v0,v1} c^{c3,a4}_{c2,a0} lambda2^{a1,a2}_{a3,a4} a+(c2) a+(a0) a+(v0) a+(v1) a-(v2) a-(c3) a-(c1) a-(c0)