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 Brown
Black Gray Black
Black Gray Gray

Output:
Brown Black Black
Brown Black Black
Gray Black Black


Example 2
Input:
Black Black Black Gray Black
Black Blue Blue Blue Black
Black Black Black Black Yellow
Black Yellow Yellow Black Black
Black Black Pink Black Black

Output:
Gray Black Black Black Black
Gray Black Black Black Black
Blue Black Black Black Black
Yellow Black Black Black Black
Yellow Black Black Black Black


Example 3
Input:
Black Purple Black
Purple Purple Black
Red Red Black

Output:
Purple Black Black
Purple Black Black
Purple Black Black


Here is the input grid for the test example:
Input:
Green Black Black Black
Brown Brown Brown Black
Black Black Brown Brown
Black Purple 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:

```
Green Black Black Black
Green Black Black Black
Brown Black Black Black
Brown Black Black Black
```
assistant