1/8 a^{a0,a1}_{c0,v0} b^{c3,c4}_{c1,c2} c^{a4,v1}_{a2,a3} lambda2^{a2,a3}_{a1,a4} a+(c0) a+(c1) a+(c2) a+(v0) a-(v1) a-(a0) a-(c4) a-(c3)
+1/8 a^{a1,a2}_{c0,v0} b^{c3,c4}_{c1,c2} c^{a0,v1}_{a3,a4} eta1^{a4}_{a2} eta1^{a3}_{a1} a+(c0) a+(c1) a+(c2) a+(v0) a-(v1) a-(a0) a-(c4) a-(c3)
+1/16 a^{a1,a2}_{c0,v0} b^{c3,c4}_{c1,c2} c^{a0,v1}_{a3,a4} lambda2^{a3,a4}_{a1,a2} a+(c0) a+(c1) a+(c2) a+(v0) a-(v1) a-(a0) a-(c4) a-(c3)
-1/4 a^{a0,a1}_{c3,v0} b^{c2,c3}_{c0,c1} c^{a4,v1}_{a2,a3} lambda2^{a2,a3}_{a1,a4} a+(c0) a+(c1) a+(v0) a-(v1) a-(a0) a-(c2)
-1/2 a^{a0,a3}_{c3,v0} b^{c2,c3}_{c0,c1} c^{a2,v1}_{a1,a4} eta1^{a4}_{a3} a+(c0) a+(c1) a+(a1) a+(v0) a-(v1) a-(a2) a-(a0) a-(c2)
-1/4 a^{a1,a2}_{c3,v0} b^{c2,c3}_{c0,c1} c^{a0,v1}_{a3,a4} eta1^{a4}_{a2} eta1^{a3}_{a1} a+(c0) a+(c1) a+(v0) a-(v1) a-(a0) a-(c2)
-1/8 a^{a1,a2}_{c3,v0} b^{c2,c3}_{c0,c1} c^{a0,v1}_{a3,a4} lambda2^{a3,a4}_{a1,a2} a+(c0) a+(c1) a+(v0) a-(v1) a-(a0) a-(c2)