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