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 Gray Blue Black
Black Green Red Black
Black Black Black Black

Output:
Gray Blue Gray Blue
Green Red Green Red
Gray Blue Gray Blue
Green Red Green Red


Example 2
Input:
Black Black Black Black
Black Gray Red Black
Black Purple Blue Black
Black Black Black Black

Output:
Gray Red Gray Red
Purple Blue Purple Blue
Gray Red Gray Red
Purple Blue Purple Blue


Example 3
Input:
Black Black Black Black
Black Pink Red Black
Black Brown Purple Black
Black Black Black Black

Output:
Pink Red Pink Red
Brown Purple Brown Purple
Pink Red Pink Red
Brown Purple Brown Purple


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

```
Yellow Green Yellow Green
Blue Red Blue Red
Yellow Green Yellow Green
Blue Red Blue Red
```
assistant