a^{c1}_{c0} b^{c3,a0}_{c2,c6} c^{c5,c6}_{c4,a1} eta1^{a1}_{a0} a+(c0) a+(c2) a+(c4) a-(c5) a-(c3) a-(c1)
+1/2 a^{c1}_{c0} b^{c2,a0}_{c4,c5} c^{c4,c5}_{c3,a1} a+(c0) a+(c3) a+(a1) a-(a0) a-(c2) a-(c1)
-1/2 a^{c1}_{c0} b^{c2,a0}_{c4,c5} c^{c4,c5}_{c3,a1} eta1^{a1}_{a0} a+(c0) a+(c3) a-(c2) a-(c1)
-1/2 a^{c0}_{c2} b^{c2,a0}_{c3,c4} c^{c3,c4}_{c1,a1} a+(c1) a+(a1) a-(a0) a-(c0)
+1/2 a^{c0}_{c2} b^{c2,a0}_{c3,c4} c^{c3,c4}_{c1,a1} eta1^{a1}_{a0} a+(c1) a-(c0)
-a^{c0}_{c4} b^{c2,a0}_{c1,c5} c^{c4,c5}_{c3,a1} a+(c1) a+(c3) a+(a1) a-(a0) a-(c2) a-(c0)
+a^{c0}_{c4} b^{c2,a0}_{c1,c5} c^{c4,c5}_{c3,a1} eta1^{a1}_{a0} a+(c1) a+(c3) a-(c2) a-(c0)
+a^{c0}_{c4} b^{c4,a0}_{c1,c5} c^{c3,c5}_{c2,a1} a+(c1) a+(c2) a+(a1) a-(a0) a-(c3) a-(c0)
-a^{c0}_{c4} b^{c4,a0}_{c1,c5} c^{c3,c5}_{c2,a1} eta1^{a1}_{a0} a+(c1) a+(c2) a-(c3) a-(c0)
+1/2 a^{c0}_{c6} b^{c3,a0}_{c1,c2} c^{c5,c6}_{c4,a1} eta1^{a1}_{a0} a+(c1) a+(c2) a+(c4) a-(c5) a-(c3) a-(c0)
+1/4 a^{c0}_{c6} b^{c6,a0}_{c1,c2} c^{c4,c5}_{c3,a1} eta1^{a1}_{a0} a+(c1) a+(c2) a+(c3) a-(c5) a-(c4) a-(c0)