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 Black Purple
Black Brown Black
Pink Black Gray

Output:
Blue Black Blue
Black Purple Black
Blue Black Blue


Example 2
Input:
Red Black Gray
Black Pink Black
Red Black Purple

Output:
Brown Black Brown
Black Red Black
Brown Black Brown


Example 3
Input:
Red Black Pink
Black Yellow Black
Green Black Purple

Output:
Brown Black Brown
Black Green Black
Brown Black Brown


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


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:

```
Green Black Green
Black Blue Black
Green Black Green
```
assistant