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