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