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 Black Black
Brown Brown Black
Black Black Black

Output:
Black Brown Brown
Brown Brown Black
Black Black Black


Example 2
Input:
Black Black Green
Black Black Green
Green Green Green

Output:
Black Green Green
Black Green Green
Green Green Green


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

Output:
Black Black Gray
Black Gray Gray
Gray Gray Black


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

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