lst:=[[(1+x)/x/(x^3-1)^(1/3),x,1], [(x^2-1)/x/(x^3-1)^(2/3),x,1], [(1+x)*(x^3-1)^(1/3)/(-1+x)^2/x,x,1], [(-1+x)^2*(1+x)/x/(x^2+x+1)/(x^3-1)^(1/3),x,1], [(1+x)*(x^3-1)^(2/3)/(-1+x)^3/x,x,1], [x*(x^3-2)/(x^3-1)^(1/3)/(x^6+x^3-1),x,1], [x^3*(x^3+2)/(x^3+1)^(2/3)/(x^6+x^3+1),x,1], [(-x^3+1)^(1/3)*(x^3-2)/x^3/(x^6+x^3-1),x,1], [(x^2+x+2)*(x^3-1)^(1/3)/x/(x^2-1)^2/(x^3+x^2-2*x-3),x,1], [(1+3*x)/(-1+3*x)/(x^3-x)^(1/3),x,1], [(-1+x)*(1+3*x)/(-1+3*x)/(x^3-x)^(2/3),x,1], [(-1+x)^2*(1+3*x)/x/(1+x)/(-1+3*x)/(x^3-x)^(1/3),x,1], [x*(1+x)*(1+3*x)/(-1+x)/(-1+3*x)/(x^3-x)^(2/3),x,1], [x*(1+x)*(1+3*x)/(-1+x)^2/(-1+3*x)/(x^3-x)^(1/3),x,1], [(x^9-3*x^6+8*x^3+3)/(x^3-1)^(2/3)/(x^9-2*x^6+x^3-27),x,1]]