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 ▢

Distractor grid 1:

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

Distractor grid 2:

▢ 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 with all rows having exactly one X.
assistant
Expression: The grid with a single column of Xs on the far right

The target grid has an arrangement where there is a single column of filled cells (marked as X) on the far right side, and all other cells are empty (marked as ▢). This pattern distinguishes it from the two distractor grids provided.
assistant