1/48 a^{}_{a0,a3,v0} b^{}_{c0,c1,c2,c3} c^{a1,a2,a4,v1}_{} gamma1^{a3}_{a4} a+(c0) a+(c1) a+(c2) a+(c3) a+(a0) a+(v0) a-(v1) a-(a2) a-(a1)
+1/48 a^{}_{a1,a2,v0} b^{}_{c0,c1,c2,c3} c^{a0,a3,a4,v1}_{} gamma1^{a2}_{a4} gamma1^{a1}_{a3} a+(c0) a+(c1) a+(c2) a+(c3) a+(v0) a-(v1) a-(a0)
+1/96 a^{}_{a1,a2,v0} b^{}_{c0,c1,c2,c3} c^{a0,a3,a4,v1}_{} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a+(c2) a+(c3) a+(v0) a-(v1) a-(a0)