-a^{c0,a0}_{c3,v0} b^{c1}_{a1} c^{c3,a2}_{c2,v1} gamma1^{a1}_{a2} a+(c2) a+(v0) a+(v1) a-(a0) a-(c1) a-(c0)
+a^{c0,a0}_{c3,v0} b^{c3}_{a1} c^{c2,a2}_{c1,v1} gamma1^{a1}_{a2} a+(c1) a+(v0) a+(v1) a-(a0) a-(c2) a-(c0)
-a^{c0,a1}_{c3,v0} b^{c1}_{a2} c^{c3,a0}_{c2,v1} eta1^{a2}_{a1} a+(c2) a+(v0) a+(v1) a-(a0) a-(c1) a-(c0)
+a^{c0,a1}_{c3,v0} b^{c3}_{a2} c^{c2,a0}_{c1,v1} eta1^{a2}_{a1} a+(c1) a+(v0) a+(v1) a-(a0) a-(c2) a-(c0)