a^{c1,a1}_{c0,a0} b^{c3,v0}_{c2,c4} c^{c4}_{v0} a+(c0) a+(c2) a+(a0) a-(a1) a-(c3) a-(c1)
-a^{c0,a1}_{c2,a0} b^{c2,v0}_{c1,c3} c^{c3}_{v0} a+(c1) a+(a0) a-(a1) a-(c0)
+a^{c0,a1}_{c2,a0} b^{c2,v0}_{c1,c3} c^{c3}_{v1} a+(c1) a+(a0) a+(v1) a-(v0) a-(a1) a-(c0)
+1/2 a^{c0,a1}_{c4,a0} b^{c3,v0}_{c1,c2} c^{c4}_{v0} a+(c1) a+(c2) a+(a0) a-(a1) a-(c3) a-(c0)
-1/2 a^{c0,a1}_{c4,a0} b^{c4,v0}_{c1,c2} c^{c3}_{v0} a+(c1) a+(c2) a+(a0) a-(a1) a-(c3) a-(c0)