a^{c1}_{c0} b^{c2,v0}_{a0,a1} c^{a2}_{v0} gamma1^{a1}_{a2} a+(c0) a+(a0) a-(c2) a-(c1)
-1/2 a^{c0}_{c1} b^{c1,v0}_{a0,a1} c^{a2}_{v0} a+(a0) a+(a1) a-(a2) a-(c0)
-a^{c0}_{c1} b^{c1,v0}_{a0,a1} c^{a2}_{v0} gamma1^{a1}_{a2} a+(a0) a-(c0)
+a^{c0}_{c1} b^{c1,v0}_{a0,a1} c^{a2}_{v1} gamma1^{a1}_{a2} a+(a0) a+(v1) a-(v0) a-(c0)