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:
Orange Blue Black Yellow
Black Orange Black Black
Black Pink Brown Black
Purple Yellow Pink Brown

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


Example 2
Input:
Orange Black Green Black
Brown Brown Purple Pink
Red Brown Black Black
Orange Black Red Black

Output:
Black Black Pink Black
Red Black Purple Green
Black Brown Brown Black
Orange Red Brown Orange


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

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


Here is the input grid for the test example:
Input:
Purple Yellow Black Pink
Black Black Orange Black
Black Blue Black Gray
Black Gray 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:

```
Black Gray Black Pink
Black Black Orange Black
Gray Blue Black Yellow
Black Black Black Purple
```
assistant