-1/2 a^{c1,a0}_{c0,a2} b^{a1}_{c4} c^{c4,a3}_{c2,c3} gamma1^{a2}_{a3} a+(c0) a+(c2) a+(c3) a-(a1) a-(a0) a-(c1)
+1/2 a^{c1,a0}_{c0,a2} b^{a3}_{c4} c^{c4,a1}_{c2,c3} gamma1^{a2}_{a3} a+(c0) a+(c2) a+(c3) a-(a1) a-(a0) a-(c1)
+1/2 a^{c0,a0}_{c4,a2} b^{a1}_{c1} c^{c4,a3}_{c2,c3} gamma1^{a2}_{a3} a+(c1) a+(c2) a+(c3) a-(a1) a-(a0) a-(c0)
-1/2 a^{c0,a0}_{c4,a2} b^{a3}_{c1} c^{c4,a1}_{c2,c3} gamma1^{a2}_{a3} a+(c1) a+(c2) a+(c3) a-(a1) a-(a0) a-(c0)