-1/2 a^{v0,v1}_{c0,a0} b^{a1,a2}_{c1,c2} c^{c2}_{v1} a+(c0) a+(c1) a+(a0) a-(v0) a-(a2) a-(a1)
+a^{v0,v1}_{c0,a1} b^{a0,a2}_{c1,c2} c^{c2}_{v1} gamma1^{a1}_{a2} a+(c0) a+(c1) a-(v0) a-(a0)
+1/2 a^{v0,v1}_{c0,a1} b^{a0,a2}_{c1,c2} c^{c3}_{v1} gamma1^{a1}_{a2} a+(c0) a+(c1) a+(c2) a-(v0) a-(a0) a-(c3)
-1/2 a^{v0,v1}_{c0,a1} b^{a0,a2}_{c1,c2} c^{c2}_{v2} gamma1^{a1}_{a2} a+(c0) a+(c1) a+(v2) a-(v1) a-(v0) a-(a0)
-1/4 a^{v0,v1}_{c2,a0} b^{a1,a2}_{c0,c1} c^{c2}_{v1} a+(c0) a+(c1) a+(a0) a-(v0) a-(a2) a-(a1)
+1/2 a^{v0,v1}_{c2,a1} b^{a0,a2}_{c0,c1} c^{c2}_{v1} gamma1^{a1}_{a2} a+(c0) a+(c1) a-(v0) a-(a0)
-1/4 a^{v0,v1}_{c2,a1} b^{a0,a2}_{c0,c1} c^{c2}_{v2} gamma1^{a1}_{a2} a+(c0) a+(c1) a+(v2) a-(v1) a-(v0) a-(a0)