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