-1/2 a^{v1}_{c0} b^{c1,c2}_{a0,a2} c^{a3,v0}_{a1,v1} gamma1^{a2}_{a3} a+(c0) a+(a0) a+(a1) a-(v0) a-(c2) a-(c1)
+a^{v0}_{c1} b^{c0,c1}_{a0,a2} c^{a3,v2}_{a1,v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a+(v1) a-(v2) a-(v0) a-(c0)
+1/2 a^{v1}_{c1} b^{c0,c1}_{a0,a1} c^{a3,v0}_{a2,v1} a+(a0) a+(a1) a+(a2) a-(v0) a-(a3) a-(c0)
+a^{v1}_{c1} b^{c0,c1}_{a0,a2} c^{a3,v0}_{a1,v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a-(v0) a-(c0)