-a^{a1,v0}_{c0,a0} b^{c0}_{c1} c^{c1}_{a2} a+(a0) a+(a2) a-(v0) a-(a1)
-a^{a1,v0}_{c0,a0} b^{c0}_{c1} c^{c1}_{a2} eta1^{a2}_{a1} a+(a0) a-(v0)
-a^{a1,v0}_{c0,a0} b^{c1}_{c2} c^{c2}_{a2} eta1^{a2}_{a1} a+(c0) a+(a0) a-(v0) a-(c1)
+a^{a1,v0}_{c2,a0} b^{c1}_{c0} c^{c2}_{a2} eta1^{a2}_{a1} a+(c0) a+(a0) a-(v0) a-(c1)
-a^{a1,v0}_{c2,a0} b^{c2}_{c0} c^{c1}_{a2} eta1^{a2}_{a1} a+(c0) a+(a0) a-(v0) a-(c1)