1/2 a^{a0,a1}_{c0,v0} b^{c1}_{a2} c^{c3,c4}_{c2,a3} eta1^{a3}_{a1} eta1^{a2}_{a0} a+(c0) a+(c2) a+(v0) a-(c4) a-(c3) a-(c1)
+1/4 a^{a0,a1}_{c0,v0} b^{c1}_{a2} c^{c3,c4}_{c2,a3} lambda2^{a2,a3}_{a0,a1} a+(c0) a+(c2) a+(v0) a-(c4) a-(c3) a-(c1)
+a^{a0,a1}_{c3,v0} b^{c0}_{a2} c^{c2,c3}_{c1,a3} eta1^{a3}_{a1} eta1^{a2}_{a0} a+(c1) a+(v0) a-(c2) a-(c0)
+1/2 a^{a0,a1}_{c3,v0} b^{c0}_{a2} c^{c2,c3}_{c1,a3} lambda2^{a2,a3}_{a0,a1} a+(c1) a+(v0) a-(c2) a-(c0)
+1/2 a^{a0,a1}_{c3,v0} b^{c3}_{a2} c^{c1,c2}_{c0,a3} eta1^{a3}_{a1} eta1^{a2}_{a0} a+(c0) a+(v0) a-(c2) a-(c1)
+1/4 a^{a0,a1}_{c3,v0} b^{c3}_{a2} c^{c1,c2}_{c0,a3} lambda2^{a2,a3}_{a0,a1} a+(c0) a+(v0) a-(c2) a-(c1)
+a^{a0,a2}_{c3,v0} b^{c0}_{a1} c^{c2,c3}_{c1,a3} eta1^{a3}_{a2} a+(c1) a+(a1) a+(v0) a-(a0) a-(c2) a-(c0)
+1/2 a^{a0,a2}_{c3,v0} b^{c3}_{a1} c^{c1,c2}_{c0,a3} eta1^{a3}_{a2} a+(c0) a+(a1) a+(v0) a-(a0) a-(c2) a-(c1)
-a^{a0,a2}_{c3,v0} b^{c0}_{a3} c^{c2,c3}_{c1,a1} eta1^{a3}_{a2} a+(c1) a+(a1) a+(v0) a-(a0) a-(c2) a-(c0)
-1/2 a^{a0,a2}_{c3,v0} b^{c3}_{a3} c^{c1,c2}_{c0,a1} eta1^{a3}_{a2} a+(c0) a+(a1) a+(v0) a-(a0) a-(c2) a-(c1)