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
Pink
Brown
Purple

Output:
Orange Black Black Black
Pink Orange Black Black
Brown Pink Orange Black
Purple Brown Pink Orange


Example 2
Input:
Black
Blue
Red
Black
Red

Output:
Black Black Black Black Black
Blue Black Black Black Black
Red Blue Black Black Black
Black Red Blue Black Black
Red Black Red Blue Black


Example 3
Input:
Brown
Red
Black
Blue
Pink

Output:
Brown Black Black Black Black
Red Brown Black Black Black
Black Red Brown Black Black
Blue Black Red Brown Black
Pink Blue Black Red Brown


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