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