-a^{c1}_{c0,a1} b^{c2,a0,a2}_{v0} gamma1^{a1}_{a2} a+(c0) a+(v0) a-(a0) a-(c2) a-(c1)
+1/2 a^{c0}_{c1,a0} b^{c1,a1,a2}_{v0} a+(a0) a+(v0) a-(a2) a-(a1) a-(c0)
-a^{c0}_{c1,a1} b^{c1,a0,a2}_{v0} gamma1^{a1}_{a2} a+(v0) a-(a0) a-(c0)