You are given three grids, where each of them is 5 by 5 in size.
Grids have empty cells marked with "▢" and filled cells marked with "X".
Your task is to generate a referring expression that best describes the target grid while distinguishing it from the two other distractor grids.
The first grid is the target grid, and the following two grids are the distractors.

Target grid:

X X ▢ ▢ X
X ▢ X ▢ ▢
X ▢ ▢ X ▢
▢ ▢ X ▢ ▢
▢ X ▢ X ▢

Distractor grid 1:

X ▢ X ▢ X
▢ ▢ ▢ X X
▢ ▢ ▢ X ▢
X ▢ X ▢ ▢
▢ X X ▢ ▢

Distractor grid 2:

X X ▢ ▢ ▢
▢ ▢ X ▢ X
▢ X X ▢ ▢
▢ X X ▢ ▢
X ▢ ▢ X ▢

Instruction: Describe the target grid.
Generate the referring expression starting with the tag "Expression: " for the given target grid. Omit any other text.
Expression: In the target grid, there are five rows and five columns, with a grid layout consisting of empty cells marked with "▢" and filled cells marked with "X". The top row has two "X"s and two empty cells, while the second row has three "X"s and two empty cells. The third row has three empty cells and two "X"s, and the fourth row has five empty cells. The fifth row has three "X"s and
assistant
Expression: The target grid has a filled cell in the top-left corner, an empty cell in the top-middle, and another filled cell in the top-right corner. In the second row, there is an empty cell in the leftmost position, a filled cell in the center, and two empty cells in the rightmost positions. The third row has filled cells in the leftmost and rightmost positions, with two empty cells in between. The bottom-left corner is empty, followed
assistant