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:
Yellow Yellow Black Black Black
Yellow Black Black Yellow Yellow
Black Black Black Black Black
Yellow Black Black Yellow Yellow
Yellow Yellow Black Black Black

Output:
Black Black Black Yellow Yellow
Yellow Yellow Black Black Yellow
Black Black Black Black Black
Yellow Yellow Black Black Yellow
Black Black Black Yellow Yellow


Example 2
Input:
Pink Pink Pink Black Pink Pink
Pink Pink Black Pink Black Pink
Pink Pink Black Pink Black Black
Pink Pink Black Pink Black Black
Pink Pink Black Pink Black Pink
Pink Pink Pink Black Pink Pink

Output:
Pink Pink Black Pink Pink Pink
Pink Black Pink Black Pink Pink
Black Black Pink Black Pink Pink
Black Black Pink Black Pink Pink
Pink Black Pink Black Pink Pink
Pink Pink Black Pink Pink Pink


Example 3
Input:
Orange Black Black Orange Orange Orange
Orange Black Black Orange Orange Black
Black Orange Orange Black Black Black
Black Orange Orange Black Black Black
Orange Black Black Orange Orange Black
Orange Black Black Orange Orange Orange

Output:
Orange Orange Orange Black Black Orange
Black Orange Orange Black Black Orange
Black Black Black Orange Orange Black
Black Black Black Orange Orange Black
Black Orange Orange Black Black Orange
Orange Orange Orange Black Black Orange


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