-1/2 a^{a2}_{v0} b^{c0,a3}_{a0,a1} c^{c1,v1}_{a4,a5} eta1^{a5}_{a3} eta1^{a4}_{a2} a+(a0) a+(a1) a+(v0) a-(v1) a-(c1) a-(c0)
-1/4 a^{a2}_{v0} b^{c0,a3}_{a0,a1} c^{c1,v1}_{a4,a5} lambda2^{a4,a5}_{a2,a3} a+(a0) a+(a1) a+(v0) a-(v1) a-(c1) a-(c0)
+a^{a2}_{v0} b^{c0,a4}_{a0,a3} c^{c1,v1}_{a1,a5} eta1^{a5}_{a4} eta1^{a3}_{a2} a+(a0) a+(a1) a+(v0) a-(v1) a-(c1) a-(c0)
+a^{a2}_{v0} b^{c0,a4}_{a0,a3} c^{c1,v1}_{a1,a5} lambda2^{a3,a5}_{a2,a4} a+(a0) a+(a1) a+(v0) a-(v1) a-(c1) a-(c0)
-1/4 a^{a2}_{v0} b^{c0,a5}_{a3,a4} c^{c1,v1}_{a0,a1} lambda2^{a3,a4}_{a2,a5} a+(a0) a+(a1) a+(v0) a-(v1) a-(c1) a-(c0)