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".
You are also given a referring expression that describes one of the given grids.
Your task is to select the grid that matches the given referring expression.
Generate only the number (in text) of the grid that matches the given expression by selecting first, second, or third.

First:

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

Second:

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

Third:

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

Expression: A 5x5 grid with an X in the top row, followed by four rows of alternating X and empty cells, where the rightmost three cells in each row are empty.
Question: Which grid does the expression refer to?
Start with the tag "Answer: ", followed by your selection. Omit any other text.

Answer: First

Explanation:

The given expression refers to a 5x5 grid with the following characteristics:
1. An "X" in the top row.
2. Four rows with alternating "X" and empty cells.
3. The rightmost three cells in each row are empty.

Let's check the grids against these criteria:

First grid:
1. Has an "X" in the top row.
assistant
Answer: First

Explanation:

The given expression refers to a 5x5 grid with the following characteristics:
1. An "X" in the top row.
2. Four rows with alternating "X" and empty cells.
3. The rightmost three cells in each row are empty.

Let's check the grids against these criteria:

First grid:
1. Has an "X" in the top row.
assistant