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