The floor is tiled.
The floor has tiles
THERE ARE TILES ON THE TILED FLOOR.
exists e1 x1.(n_floor(x1) & Theme(e1,x1) & v_tile(e1))
exists e1 x1 x2.(n_floor(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_tile(x2))