<<PolylogTools`

L5[x_]:=-G[0,0,0,0,1/x,1];

L5[x]//CreateTensor//sh//flatTensor//Expand

fe = (11/2) L5i[1-x]+(11/2) L5i[(1/x)]+(11/2) L5i[((-1+x)/x)]+(11/6) L5i[((-1+y)/(y^2))]-(11/12) L5i[-((-1+y)/((-1+x) (y^2)))]-(11/12) L5i[-(((-1+x) (-1+y))/(y^2))]-(11/12) L5i[((-1+y)/(x (y^2)))]-(11/12) L5i[(((-1+x) (-1+y))/(x (y^2)))]-(11/12) L5i[((x (-1+y))/(y^2))]-(11/12) L5i[((x (-1+y))/((-1+x) (y^2)))]+(11/6) L5i[-(1/((-1+y) y))]-(11/12) L5i[(1/((-1+x) (-1+y) y))]-(11/12) L5i[((-1+x)/((-1+y) y))]-(11/12) L5i[-(1/(x (-1+y) y))]-(11/12) L5i[-((-1+x)/(x (-1+y) y))]-(11/12) L5i[-(x/((-1+y) y))]-(11/12) L5i[-(x/((-1+x) (-1+y) y))]+(11/6) L5i[-((((-1+y))^2)/y)]-(11/12) L5i[((((-1+y))^2)/((-1+x) y))]-(11/12) L5i[(((-1+x) (((-1+y))^2))/y)]-(11/12) L5i[-((((-1+y))^2)/(x y))]-(11/12) L5i[-(((-1+x) (((-1+y))^2))/(x y))]-(11/12) L5i[-((x (((-1+y))^2))/y)]-(11/12) L5i[-((x (((-1+y))^2))/((-1+x) y))]+(1/24) L5i[-(((((-1+y))^2) (y^2))/((-1+x) (x^2) (((1-y+(y^2)))^3)))]+(1/24) L5i[-(((((-1+x))^3) (((-1+y))^2) (y^2))/((x^2) (((1-y+(y^2)))^3)))]+(1/24) L5i[(((((-1+y))^2) (y^2))/((((-1+x))^2) x (((1-y+(y^2)))^3)))]+(1/24) L5i[(((((-1+x))^3) (((-1+y))^2) (y^2))/(x (((1-y+(y^2)))^3)))]+(1/24) L5i[(((x^3) (((-1+y))^2) (y^2))/((((-1+x))^2) (((1-y+(y^2)))^3)))]+(1/24) L5i[(((x^3) (((-1+y))^2) (y^2))/((-1+x) (((1-y+(y^2)))^3)))]-(1/12) L5i[-(((-1+y) y)/((-1+x) x (((1-y+(y^2)))^2)))]-(1/12) L5i[-(((((-1+x))^2) (-1+y) y)/(x (((1-y+(y^2)))^2)))]-(1/12) L5i[(((x^2) (-1+y) y)/((-1+x) (((1-y+(y^2)))^2)))]-(1/12) L5i[-(((((-1+y))^2) y)/((-1+x) x (((1-y+(y^2)))^2)))]-(1/12) L5i[-(((((-1+x))^2) (((-1+y))^2) y)/(x (((1-y+(y^2)))^2)))]-(1/12) L5i[(((x^2) (((-1+y))^2) y)/((-1+x) (((1-y+(y^2)))^2)))]-(1/12) L5i[(((-1+y) (y^2))/((-1+x) x (((1-y+(y^2)))^2)))]-(1/12) L5i[(((((-1+x))^2) (-1+y) (y^2))/(x (((1-y+(y^2)))^2)))]-(1/12) L5i[-(((x^2) (-1+y) (y^2))/((-1+x) (((1-y+(y^2)))^2)))]+L5i[(1/(1-y+(y^2)))]-(1/2) L5i[-(1/((-1+x) (1-y+(y^2))))]-(1/2) L5i[-((-1+x)/(1-y+(y^2)))]-(1/2) L5i[(1/(x (1-y+(y^2))))]-(1/2) L5i[((-1+x)/(x (1-y+(y^2))))]-(1/2) L5i[(x/(1-y+(y^2)))]-(1/2) L5i[(x/((-1+x) (1-y+(y^2))))]+(7/2) L5i[-((-1+y)/(1-y+(y^2)))]-(7/4) L5i[((-1+y)/((-1+x) (1-y+(y^2))))]-(7/4) L5i[(((-1+x) (-1+y))/(1-y+(y^2)))]-(7/4) L5i[-((-1+y)/(x (1-y+(y^2))))]-(7/4) L5i[-(((-1+x) (-1+y))/(x (1-y+(y^2))))]-(7/4) L5i[-((x (-1+y))/(1-y+(y^2)))]-(7/4) L5i[-((x (-1+y))/((-1+x) (1-y+(y^2))))]+L5i[((((-1+y))^2)/(1-y+(y^2)))]-(1/2) L5i[-((((-1+y))^2)/((-1+x) (1-y+(y^2))))]-(1/2) L5i[-(((-1+x) (((-1+y))^2))/(1-y+(y^2)))]-(1/2) L5i[((((-1+y))^2)/(x (1-y+(y^2))))]-(1/2) L5i[(((-1+x) (((-1+y))^2))/(x (1-y+(y^2))))]-(1/2) L5i[((x (((-1+y))^2))/(1-y+(y^2)))]-(1/2) L5i[((x (((-1+y))^2))/((-1+x) (1-y+(y^2))))]+(1/8) L5i[-(((-1+x) (((-1+y))^2))/((x^2) (y^2) (1-y+(y^2))))]+(1/8) L5i[((x (((-1+y))^2))/((((-1+x))^2) (y^2) (1-y+(y^2))))]+(1/8) L5i[(((-1+x) x (((-1+y))^2))/((y^2) (1-y+(y^2))))]+(1/12) L5i[-((-1+x)/((x^2) (-1+y) y (1-y+(y^2))))]+(1/12) L5i[(x/((((-1+x))^2) (-1+y) y (1-y+(y^2))))]+(1/12) L5i[(((-1+x) x)/((-1+y) y (1-y+(y^2))))]+(1/12) L5i[-(((-1+x) (((-1+y))^4))/((x^2) y (1-y+(y^2))))]+(1/12) L5i[((x (((-1+y))^4))/((((-1+x))^2) y (1-y+(y^2))))]+(1/12) L5i[(((-1+x) x (((-1+y))^4))/(y (1-y+(y^2))))]+(7/2) L5i[(y/(1-y+(y^2)))]-(7/4) L5i[-(y/((-1+x) (1-y+(y^2))))]-(7/4) L5i[-(((-1+x) y)/(1-y+(y^2)))]-(7/4) L5i[(y/(x (1-y+(y^2))))]-(7/4) L5i[(((-1+x) y)/(x (1-y+(y^2))))]-(7/4) L5i[((x y)/(1-y+(y^2)))]-(7/4) L5i[((x y)/((-1+x) (1-y+(y^2))))]+(7/2) L5i[(((-1+y) y)/(1-y+(y^2)))]-(7/4) L5i[-(((-1+y) y)/((-1+x) (1-y+(y^2))))]-(7/4) L5i[-(((-1+x) (-1+y) y)/(1-y+(y^2)))]-(7/4) L5i[(((-1+y) y)/(x (1-y+(y^2))))]-(7/4) L5i[(((-1+x) (-1+y) y)/(x (1-y+(y^2))))]-(7/4) L5i[((x (-1+y) y)/(1-y+(y^2)))]-(7/4) L5i[((x (-1+y) y)/((-1+x) (1-y+(y^2))))]+L5i[((y^2)/(1-y+(y^2)))]-(1/2) L5i[-((y^2)/((-1+x) (1-y+(y^2))))]-(1/2) L5i[-(((-1+x) (y^2))/(1-y+(y^2)))]-(1/2) L5i[((y^2)/(x (1-y+(y^2))))]-(1/2) L5i[(((-1+x) (y^2))/(x (1-y+(y^2))))]-(1/2) L5i[((x (y^2))/(1-y+(y^2)))]-(1/2) L5i[((x (y^2))/((-1+x) (1-y+(y^2))))]+(1/8) L5i[-(((-1+x) (y^2))/((x^2) (((-1+y))^2) (1-y+(y^2))))]+(1/8) L5i[((x (y^2))/((((-1+x))^2) (((-1+y))^2) (1-y+(y^2))))]+(1/8) L5i[(((-1+x) x (y^2))/((((-1+y))^2) (1-y+(y^2))))]+(1/8) L5i[-(((-1+x) (((-1+y))^2) (y^2))/((x^2) (1-y+(y^2))))]+(1/8) L5i[((x (((-1+y))^2) (y^2))/((((-1+x))^2) (1-y+(y^2))))]+(1/8) L5i[(((-1+x) x (((-1+y))^2) (y^2))/(1-y+(y^2)))]+(1/12) L5i[(((-1+x) (y^4))/((x^2) (-1+y) (1-y+(y^2))))]+(1/12) L5i[-((x (y^4))/((((-1+x))^2) (-1+y) (1-y+(y^2))))]+(1/12) L5i[-(((-1+x) x (y^4))/((-1+y) (1-y+(y^2))))];

fe/.L5i->L5//CreateTensor//sh//flatTensor//Expand