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 ▢

Second:

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

Third:

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

Expression: The target grid has an X in the top left cell, and X's in the next row forming a diagonal to the third cell in that row. There is an X in the fourth row, third cell, and X's in the last row in the first and fourth cells. The rest of the cells 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

The description in the expression matches the first grid:

X (top left cell)
X in the next row forming a diagonal to the third cell: ▢ X ▢
X in the fourth row, third cell: ▢ X ▢
X's in the last row in the first and fourth cells: X ▢ ▢ X
The rest of the cells are empty:
assistant
Answer: First

The description in the expression matches the first grid:

X (top left cell)
X in the next row forming a diagonal to the third cell: ▢ X ▢
X in the fourth row, third cell: ▢ X ▢
X's in the last row in the first and fourth cells: X ▢ ▢ X
The rest of the cells are empty:
assistant