a^{a1}_{c0,a0} b^{c0,a3}_{a2} a+(a0) a+(a2) a-(a3) a-(a1)
+a^{a1}_{c0,a0} b^{c0,a3}_{a2} eta1^{a2}_{a1} gamma1^{a0}_{a3}
+a^{a1}_{c0,a0} b^{c0,a3}_{a2} lambda2^{a0,a2}_{a1,a3}
+a^{a1}_{c0,a0} b^{c1,a3}_{a2} eta1^{a2}_{a1} gamma1^{a0}_{a3} a+(c0) a-(c1)
+a^{a1}_{c0,a0} b^{c1,a3}_{a2} lambda2^{a0,a2}_{a1,a3} a+(c0) a-(c1)
+a^{a2}_{c0,a0} b^{c0,a1}_{a3} eta1^{a3}_{a2} a+(a0) a-(a1)
+a^{a2}_{c0,a0} b^{c1,a1}_{a3} eta1^{a3}_{a2} a+(c0) a+(a0) a-(a1) a-(c1)
-a^{a0}_{c0,a2} b^{c0,a3}_{a1} gamma1^{a2}_{a3} a+(a1) a-(a0)
-a^{a0}_{c0,a2} b^{c1,a3}_{a1} gamma1^{a2}_{a3} a+(c0) a+(a1) a-(a0) a-(c1)