1/8 a^{c0,c1}_{a0,a1} b^{a3,v0}_{c2,a2} c^{c3,c4}_{a4,v0} eta1^{a4}_{a3} a+(c2) a+(a0) a+(a1) a+(a2) a-(c4) a-(c3) a-(c1) a-(c0)
+1/4 a^{c0,c1}_{a0,a1} b^{a3,v0}_{c3,a2} c^{c2,c3}_{a4,v0} a+(a0) a+(a1) a+(a2) a+(a4) a-(a3) a-(c2) a-(c1) a-(c0)
-1/4 a^{c0,c1}_{a0,a1} b^{a3,v0}_{c3,a2} c^{c2,c3}_{a4,v0} eta1^{a4}_{a3} a+(a0) a+(a1) a+(a2) a-(c2) a-(c1) a-(c0)
+1/4 a^{c0,c1}_{a0,a1} b^{a3,v0}_{c3,a2} c^{c2,c3}_{a4,v1} eta1^{a4}_{a3} a+(a0) a+(a1) a+(a2) a+(v1) a-(v0) a-(c2) a-(c1) a-(c0)
-1/4 a^{c0,c1}_{a0,a3} b^{a4,v0}_{c2,a1} c^{c3,c4}_{a2,v0} gamma1^{a3}_{a4} a+(c2) a+(a0) a+(a1) a+(a2) a-(c4) a-(c3) a-(c1) a-(c0)
+1/2 a^{c0,c1}_{a0,a3} b^{a4,v0}_{c3,a1} c^{c2,c3}_{a2,v0} gamma1^{a3}_{a4} a+(a0) a+(a1) a+(a2) a-(c2) a-(c1) a-(c0)
-1/2 a^{c0,c1}_{a0,a3} b^{a4,v0}_{c3,a1} c^{c2,c3}_{a2,v1} gamma1^{a3}_{a4} a+(a0) a+(a1) a+(a2) a+(v1) a-(v0) a-(c2) a-(c1) a-(c0)