-1/2 a^{c2,v0}_{c0,c1} b^{c3}_{c4} c^{c4}_{v0} a+(c0) a+(c1) a-(c3) a-(c2)
-a^{c1,v0}_{c0,c2} b^{c2}_{c3} c^{c3}_{v0} a+(c0) a-(c1)
+a^{c1,v0}_{c0,c2} b^{c2}_{c3} c^{c3}_{v1} a+(c0) a+(v1) a-(v0) a-(c1)
+a^{c1,v0}_{c0,c4} b^{c3}_{c2} c^{c4}_{v0} a+(c0) a+(c2) a-(c3) a-(c1)
-a^{c1,v0}_{c0,c4} b^{c4}_{c2} c^{c3}_{v0} a+(c0) a+(c2) a-(c3) a-(c1)
-a^{c0,v0}_{c2,c3} b^{c2}_{c1} c^{c3}_{v0} a+(c1) a-(c0)
+a^{c0,v0}_{c2,c3} b^{c2}_{c1} c^{c3}_{v1} a+(c1) a+(v1) a-(v0) a-(c0)