-1/4 a^{a0}_{c0,c1,a1} b^{c3,c4,a2}_{c2} gamma1^{a1}_{a2} a+(c0) a+(c1) a+(c2) a-(a0) a-(c4) a-(c3)
-a^{a1}_{c0,c3,a0} b^{c2,c3,a2}_{c1} a+(c0) a+(c1) a+(a0) a-(a2) a-(a1) a-(c2)
-a^{a0}_{c0,c3,a1} b^{c2,c3,a2}_{c1} gamma1^{a1}_{a2} a+(c0) a+(c1) a-(a0) a-(c2)
-1/2 a^{a1}_{c1,c2,a0} b^{c1,c2,a2}_{c0} a+(c0) a+(a0) a-(a2) a-(a1)
-1/2 a^{a0}_{c1,c2,a1} b^{c1,c2,a2}_{c0} gamma1^{a1}_{a2} a+(c0) a-(a0)