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
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 X

Distractor grid 2:

X ▢ X X X
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: The grid that has four rows of two X's and three ▢'s.||
assistant
Expression: The target grid has a unique pattern of four rows and columns filled with alternating X's and empty cells, creating a distinctive checkerboard appearance. It stands out from the distractors which feature either more empty or more filled cells in their patterns. This consistent arrangement of elements makes it easy to identify the target grid as different from the others. The specific pattern is:

X X ▢ X X
X X ▢ X X
X
assistant