1/4 a^{a1,a2}_{a0,a3} b^{v0,v1}_{c0,c1} c^{a4}_{v1} gamma1^{a3}_{a4} a+(c0) a+(c1) a+(a0) a-(v0) a-(a2) a-(a1)
-1/4 a^{a0,a3}_{a1,a2} b^{v0,v1}_{c0,c1} c^{a4}_{v1} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a-(v0) a-(a0)
+1/8 a^{a0,a3}_{a1,a2} b^{v0,v1}_{c0,c1} c^{a4}_{v2} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a+(v2) a-(v1) a-(v0) a-(a0)