1/2 a^{a0}_{c0} b^{c2,c3}_{c1,a1} c^{a3}_{a2} eta1^{a2}_{a0} gamma1^{a1}_{a3} a+(c0) a+(c1) a-(c3) a-(c2)
+1/2 a^{a0}_{c0} b^{c2,c3}_{c1,a1} c^{a3}_{a2} lambda2^{a1,a2}_{a0,a3} a+(c0) a+(c1) a-(c3) a-(c2)
-a^{a0}_{c2} b^{c1,c2}_{c0,a1} c^{a3}_{a2} eta1^{a2}_{a0} gamma1^{a1}_{a3} a+(c0) a-(c1)
-a^{a0}_{c2} b^{c1,c2}_{c0,a1} c^{a3}_{a2} lambda2^{a1,a2}_{a0,a3} a+(c0) a-(c1)
+a^{a0}_{c2} b^{c1,c2}_{c0,a2} c^{a3}_{a1} gamma1^{a2}_{a3} a+(c0) a+(a1) a-(a0) a-(c1)
-a^{a2}_{c2} b^{c1,c2}_{c0,a0} c^{a1}_{a3} eta1^{a3}_{a2} a+(c0) a+(a0) a-(a1) a-(c1)
+a^{a2}_{c2} b^{c1,c2}_{c0,a3} c^{a1}_{a0} eta1^{a3}_{a2} a+(c0) a+(a0) a-(a1) a-(c1)