1/2 a^{a1,a2}_{a0,v0} b^{c0,v1}_{a3,a4} c^{c1}_{v1} eta1^{a4}_{a2} eta1^{a3}_{a1} a+(a0) a+(v0) a-(c1) a-(c0)
+1/4 a^{a1,a2}_{a0,v0} b^{c0,v1}_{a3,a4} c^{c1}_{v1} lambda2^{a3,a4}_{a1,a2} a+(a0) a+(v0) a-(c1) a-(c0)
-1/2 a^{a1,a2}_{a0,v0} b^{c0,v1}_{a3,a4} c^{c1}_{v2} eta1^{a4}_{a2} eta1^{a3}_{a1} a+(a0) a+(v0) a+(v2) a-(v1) a-(c1) a-(c0)
-1/4 a^{a1,a2}_{a0,v0} b^{c0,v1}_{a3,a4} c^{c1}_{v2} lambda2^{a3,a4}_{a1,a2} a+(a0) a+(v0) a+(v2) a-(v1) a-(c1) a-(c0)
+a^{a1,a3}_{a0,v0} b^{c0,v1}_{a2,a4} c^{c1}_{v1} eta1^{a4}_{a3} a+(a0) a+(a2) a+(v0) a-(a1) a-(c1) a-(c0)
-1/2 a^{a2,a3}_{a1,v0} b^{c0,v1}_{a0,a4} c^{c1}_{v1} lambda2^{a1,a4}_{a2,a3} a+(a0) a+(v0) a-(c1) a-(c0)
+1/2 a^{a2,a3}_{a1,v0} b^{c0,v1}_{a0,a4} c^{c1}_{v2} lambda2^{a1,a4}_{a2,a3} a+(a0) a+(v0) a+(v2) a-(v1) a-(c1) a-(c0)