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