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