1/4 a^{a1,a2,a3}_{a0} b^{}_{a4,a5,v0,v1} eta1^{a5}_{a3} eta1^{a4}_{a2} a+(a0) a+(v0) a+(v1) a-(a1)
-1/4 a^{a1,a2,a3}_{a0} b^{}_{a4,a5,v0,v1} eta1^{a5}_{a3} lambda2^{a0,a4}_{a1,a2} a+(v0) a+(v1)
+1/8 a^{a1,a2,a3}_{a0} b^{}_{a4,a5,v0,v1} lambda2^{a4,a5}_{a2,a3} a+(a0) a+(v0) a+(v1) a-(a1)
+1/24 a^{a1,a2,a3}_{a0} b^{}_{a4,a5,v0,v1} lambda3^{a0,a4,a5}_{a1,a2,a3} a+(v0) a+(v1)
-1/4 a^{a1,a2,a4}_{a0} b^{}_{a3,a5,v0,v1} eta1^{a5}_{a4} a+(a0) a+(a3) a+(v0) a+(v1) a-(a2) a-(a1)
-1/4 a^{a0,a3,a4}_{a2} b^{}_{a1,a5,v0,v1} lambda2^{a2,a5}_{a3,a4} a+(a1) a+(v0) a+(v1) a-(a0)