1/2 a^{a1,a2}_{a0,a3} b^{v2}_{v0} c^{a4,v1}_{c0,v2} gamma1^{a3}_{a4} a+(c0) a+(a0) a+(v0) a-(v1) a-(a2) a-(a1)
+1/2 a^{a0,a3}_{a1,a2} b^{v1}_{v0} c^{a4,v3}_{c0,v2} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(v0) a+(v2) a-(v3) a-(v1) a-(a0)
+1/2 a^{a0,a3}_{a1,a2} b^{v2}_{v0} c^{a4,v1}_{c0,v2} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(v0) a-(v1) a-(a0)