The floor is tiled.
The floor is tiled with marble.
Not all floors are tiled with marble.
exists e1 x1.(n_floor(x1) & Theme(e1,x1) & v_tile(e1))
exists e1 x1 x2.(n_floor(x1) & with(e1,x2) & n_marble(x2) & Theme(e1,x1) & v_tile(e1))