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:
Purple Black Black Black Purple Black Purple
Black Brown Green Orange Purple Black Black
Black Black Purple Black Black Orange Black
Black Black Green Orange Purple Purple Black
Black Brown Purple Black Purple Orange Purple

Output:
Purple Black Black Black Black Black Black
Black Black Black Black Black Black Black
Black Black Black Black Black Black Black
Black Black Black Black Black Black Black
Black Black Black Black Black Black Black


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

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


Example 3
Input:
Black Black Black Black Gray Blue
Black Orange Orange Gray Black Gray
Black Gray Black Gray Black Black
Gray Orange Black Gray Black Black
Black Black Gray Gray Black Blue
Black Orange Gray Black Black Black

Output:
Black Black Black Black Black Black
Black Black Black Black Black Black
Black Black Black Black Black Black
Gray Black Black Black Black Black
Black Black Black Black Black Black
Black Black Black Black Black Black


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


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:

```
Pink Black Black Black
Pink Black Black Black
Brown Black Black Black
Brown Black Black Black
```
assistant