-1/2 a^{c1,c2}_{c0,c5} b^{c3,c5}_{a0,v0} c^{a1}_{c4} gamma1^{a0}_{a1} a+(c0) a+(c4) a+(v0) a-(c3) a-(c2) a-(c1)
+1/4 a^{c0,c1}_{c3,c4} b^{c3,c4}_{a0,v0} c^{a1}_{c2} a+(c2) a+(a0) a+(v0) a-(a1) a-(c1) a-(c0)
-1/4 a^{c0,c1}_{c3,c4} b^{c3,c4}_{a0,v0} c^{a1}_{c2} gamma1^{a0}_{a1} a+(c2) a+(v0) a-(c1) a-(c0)