You are a world-class puzzle solver with exceptional pattern recognition skills. Your task is to analyze puzzles, spot patterns, and provide direct solutions.
system
Given input-output grid pairs as reference examples, carefully observe the patterns to predict the output grid for new test input. Each pair follows the same transformation rule. Grids are 2D arrays represented as strings, with cells (colors) separated by spaces and rows by newlines.
Here are the input and output grids for the reference examples:
Example 1
Input:
Gray Gray Gray Gray Gray
Gray Gray Gray Gray Gray
Gray Gray Gray Gray Gray
Gray Gray Gray Black Black
Gray Gray Gray Black Black

Output:
Black Black Black Gray Gray
Black Black Black Gray Gray
Black Black Black Black Black
Black Black Black Black Black
Black Black Black Black Black


Example 2
Input:
Gray Gray Gray Gray Gray
Gray Gray Black Black Black
Gray Gray Black Black Black
Gray Gray Black Black Black
Gray Gray Gray Gray Gray

Output:
Black Gray Gray Gray Black
Black Gray Gray Gray Black
Black Gray Gray Gray Black
Black Black Black Black Black
Black Black Black Black Black


Example 3
Input:
Gray Gray Gray Gray Gray
Gray Gray Gray Gray Gray
Black Black Black Gray Gray
Black Black Black Gray Gray
Black Black Black Gray Gray

Output:
Black Black Black Black Black
Black Black Black Black Black
Black Black Gray Gray Gray
Black Black Gray Gray Gray
Black Black Gray Gray Gray


Here is the input grid for the test example:
Input:
Gray Gray Gray Gray Gray
Gray Gray Gray Gray Gray
Gray Gray Gray Gray Gray
Gray Gray Gray Gray Gray
Gray Gray Gray Gray Black


Directly provide the output grids corresponding to the given test input grids, based on the patterns observed in the reference examples.
user
The output grid for the test input grid is:

```
Black Black Black Black Gray
Black Black Black Black Black
Black Black Black Black Black
Black Black Black Black Black
Black Black Black Black Black
```
assistant