1/4 a^{a0,a1}_{c0,c5} b^{c2,c5}_{c1,a3} c^{a2,a4}_{c3,c4} gamma1^{a3}_{a4} a+(c0) a+(c1) a+(c3) a+(c4) a-(a2) a-(a1) a-(a0) a-(c2)
-1/4 a^{a0,a3}_{c0,c5} b^{c2,c5}_{c1,a4} c^{a1,a2}_{c3,c4} eta1^{a4}_{a3} a+(c0) a+(c1) a+(c3) a+(c4) a-(a2) a-(a1) a-(a0) a-(c2)
+1/16 a^{a0,a1}_{c3,c4} b^{c3,c4}_{c0,a2} c^{a3,a4}_{c1,c2} a+(c0) a+(c1) a+(c2) a+(a2) a-(a4) a-(a3) a-(a1) a-(a0)
+1/8 a^{a0,a1}_{c3,c4} b^{c3,c4}_{c0,a3} c^{a2,a4}_{c1,c2} gamma1^{a3}_{a4} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)
-1/8 a^{a0,a3}_{c3,c4} b^{c3,c4}_{c0,a4} c^{a1,a2}_{c1,c2} eta1^{a4}_{a3} a+(c0) a+(c1) a+(c2) a-(a2) a-(a1) a-(a0)