1/16 a^{v0,v1}_{a0,a1} b^{c0,a2}_{v0,v1} c^{c3,c4}_{c1,c2} a+(c1) a+(c2) a+(a0) a+(a1) a-(a2) a-(c4) a-(c3) a-(c0)
+1/8 a^{v0,v1}_{a0,a1} b^{c0,a2}_{v0,v1} c^{c3,c4}_{c1,c2} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(a0) a-(c4) a-(c3) a-(c0)
-1/4 a^{v0,v2}_{a0,a1} b^{c0,a2}_{v1,v2} c^{c3,c4}_{c1,c2} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(a0) a+(v1) a-(v0) a-(c4) a-(c3) a-(c0)