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 ▢ ▢ ▢ X
X X X X X

Distractor grid 1:

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

Distractor grid 2:

X X ▢ X X
X X ▢ 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: Grid with 3 rows of 3 filled cells in the middle
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Expression: The target grid has a consistent pattern of Xs and ▢s, with no empty rows or columns. It has a total of 15 filled cells (5 rows and 5 columns) and 10 empty cells (5 rows and 5 columns). The filled cells form a diamond shape, with the top and bottom rows and left and right columns having 3 filled cells each, and the middle row and middle columns having 2 filled cells each. The
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