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