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