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:
Red Black Black Black Gray
Black Blue Black Black Black
Black Blue Black Black Black
Black Blue Blue Blue Black
Yellow Black Black Black Brown

Output:
Gray Gray Gray
Gray Black Gray
Gray Gray Gray


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

Output:
Gray Gray Gray
Gray Black Gray
Gray Gray Gray


Example 3
Input:
Pink Black Black Black Blue
Black Blue Blue Blue Black
Black Blue Blue Blue Black
Black Black Blue Blue Black
Brown Black Black Black Yellow

Output:
Brown Brown Brown
Brown Black Brown
Brown Brown Brown


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


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:

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