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 Black
Black Black Black Black
Brown Orange Purple Brown
Pink Gray Pink Yellow

Output:
Black Black Black Black
Black Black Black Black
Pink Brown Pink Purple
Gray Orange Yellow Brown


Example 2
Input:
Green Red Purple Blue
Blue Yellow Brown Orange
Black Black Red Gray
Black Black Blue Pink

Output:
Blue Green Brown Purple
Yellow Red Orange Blue
Black Black Blue Red
Black Black Pink Gray


Example 3
Input:
Pink Purple Black Black
Orange Blue Black Black
Green Red Blue Pink
Yellow Yellow Gray Orange

Output:
Orange Pink Black Black
Blue Purple Black Black
Yellow Green Gray Blue
Yellow Red Orange Pink


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

```
Green Brown Black Black
Gray Pink Black Black
Black Black Black Black
Black Black Black Black
```
assistant