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