1/2 a^{v0,v1}_{c0,a0} b^{c0,a1}_{v0,v1} c^{}_{} a+(a0) a-(a1)
+1/2 a^{v0,v1}_{c0,a0} b^{c0,a1}_{v0,v1} c^{}_{} gamma1^{a0}_{a1}
+1/2 a^{v0,v1}_{c0,a0} b^{c1,a1}_{v0,v1} c^{}_{} a+(c0) a+(a0) a-(a1) a-(c1)
+1/2 a^{v0,v1}_{c0,a0} b^{c1,a1}_{v0,v1} c^{}_{} gamma1^{a0}_{a1} a+(c0) a-(c1)
+1/4 a^{v0,v1}_{c0,a0} b^{c0,a1}_{v2,v3} c^{}_{} gamma1^{a0}_{a1} a+(v2) a+(v3) a-(v1) a-(v0)
-a^{v0,v2}_{c0,a0} b^{c0,a1}_{v1,v2} c^{}_{} a+(a0) a+(v1) a-(v0) a-(a1)
-a^{v0,v2}_{c0,a0} b^{c0,a1}_{v1,v2} c^{}_{} gamma1^{a0}_{a1} a+(v1) a-(v0)
-a^{v0,v2}_{c0,a0} b^{c1,a1}_{v1,v2} c^{}_{} gamma1^{a0}_{a1} a+(c0) a+(v1) a-(v0) a-(c1)