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:
Black Pink Black
Black Yellow Brown
Black Black Black

Output:
Black Yellow Black
Black Yellow Yellow
Black Black Black


Example 2
Input:
Black Black Black
Gray Green Black
Blue Brown Orange

Output:
Black Black Black
Green Green Black
Green Green Green


Example 3
Input:
Yellow Brown Black
Black Green Red
Black Pink Orange

Output:
Green Green Black
Black Green Green
Black Green Green


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