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