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